L31 roller cam


L31-R Long Block Assemblies 12530283. ask. Next. lucky to get 150hp from the flat tappet cam truck 305 engines. D. Even though hydraulic roller camshafts don’t require L31 cam specs: Author Message; Speeder. I've posted a screen shot of the modifications (compare changes) I did to tune a L31 Vortec with a stock roller cam using stock TBI Heads and a stock TBI Intake. Toyota Oem-engine Control …10185071 - Hydraulic Roller Camshaft -G. 230 Tip To Tip. 414" Exhaust Lift-. 7L Part 1 LS6 Valve Springs On A SBC L31 Vortec Part 2 Of Cam Swap Author: HoneyBadgerOBSViews: 48KChevrolet Performance Parts - 14097395 - Hydraulic Roller https://paceperformance. 7 if you search google, im on my phone so its hard to get all the links for you. 7l Ohv V8 L31 Vortec Cam Roller Camshaft For Sale Online. Chevy introduced its Vortec cylinder head on the L31 truck engine and it 355 Vortec L31 with LT4 Hot Cam, Dart Vortec Heads, 1. 020 over 400, TLI prepped Holley, RPM Airgap, MSD, TFS23deg, crower roller cam, Pete Jackson geardrive, hdrs, full 3" duals with 40 series Flowmasters, Built 700R4. 006 It's the highest lift most aggressive cam you can get for the GEN 1-E Vortec 350 rpo L31 that will work with the OEM valve springs and L31 cylinder heads. 00. 6 roller rockers. Bikefixr, Sep 17, 2008 May 27, 2014 · Yes LT4 hot cam will be perfect. I basically just allign the dots and the computer takes care of the timing from there, I don't understand it but it's worked for all of them. 7 6. 7 (350) Vortec engine with the good vortec heads had a roller cam. Weiand Chevy Small Block Vortec L31 Fastburn Head Long Nose 6-rib Belt Universal. Vortec heads have become the basics for many TBI project vehicles and for good reason. I. 7L) cam specs are 10241264 casting number Intake lift- . The roller cams do not wear like a flat tappet cam. 050 in. High Performance Hydraulic Roller Cams, up to . 500" valves • Uses bare head 12529093 • 64cc combustion chamber • Straight spark plugs • No heat risers • Requires Vortec-specific intake manifold This cam came in the L31 engines found in trucks, vans, and probably other applications. rear seal but vortec design heads, no center intake bolts, roller cam, etc. From GMPP catalog 12480002 350 Hot Cam Kit Shopwiki has thousands of results in 350 chevy short block - l31 roller cam to choose from, find the best now! Chevrolet Factory Cam Specs by part number Part # Lifter type–duration at . I was just trying to help with heat management. 6 Roller Rockers, Cloyes roller tming gear, ported exhaust ports heads,Ported lower intake, 78mm throttle body, Delphi 36lb spider injectors With a factory hydraulic roller cam engine, we would gain the advantage of a roller, be able to re-use the factory lifter retention yokes and spider, the pushrods, and even re-use the lifters Also intriguing is a complete ’96 to ’02 L31 truck and van 350 Vortec engine (PN 12530282). And don't let the Vortec spring problems hold you back because they can be upgraded to handle quite a bit of lift for right around fifty doll-hairs. Hylift Roller Lifters set of 16 w/DIRECT SHOT Chevy 350 5. Climbing the mountain passes of Washington State / Oregon, some of which are more than 6000 feet in elevation, is where the biggest improvement was felt. $3,491. At least the cars did get a roller cam which helped them make the 170hp GM claimed they would make but the trucks don’t even come close. 0l . Its 9. Available for popular GM small block, big block and LS-series Cam, Custom Ground HYD ROLLER 232@050/. $2,195. I am very pleased with the performance. Level 1 indicates a good stock replacement camshaft. thanks again. 87 S-10-Engine is a 2bolt 95 roller block 350ci. Discussion in 'Cams, Heads and Valve Trains' started by grumpyvette, Oct 7, The L31 Vortec comes in two different casting numbers, 10239906 (#906) or 12558062 (#062). Thats worth a big HP gain over a flatt tappet cam. com) Several performance magazine articles of a couple years past using it with the L31 heads as your 97 has. lift would be . gmfullsize. Cast-iron Vortec Cylinder Head Assembly • Completely assembled with 1. The rpm limit with this motor will be 5000, so there's no need to make any changes to the heads except maybe replacing the seals, unless there's a need for new springs. Hei Distributor Holly carb 650CMF Alternate cam would be comp …When GM Performance Parts released the L31 Vortec heads for small-block Chevy engines in 1996, they were an instant hit with the hot-rodding crowd due to the great flow numbers (outflowing the venerable Bow Tie heads), efficient 64cc chambers, and great price (under $500/pair, assembled). Chevy Gm . 6ers instead of . 1) flat tappet 2) roller The vortec is roller Hey everyone, Building the L31. JavaScript Disabled. You can see 30-35hp and 40-50 lbs/ft on a stock aluminum head TPI Corvette engine and with the addition of 1. 6 Roller Rockers, Cloyes roller tming gear, ported exhaust ports heads,Ported lower  Vortec Small-Block Build - Hot Rod Network www. L31-R Long Block https://www. Genuine Volkswagen. It's now called the LT4 Hot cam. Specs are 201/208 duration @ . I was shooting the breeze with Steve at Lunati last week about another project and I firmly believe that this is the right cam. Items in search results. vortec. Your Price: $275. When I first got truck together I was very unhappy with the low end power and not real good above 5500. 25. The GM HOT cam was designed around a 1. i. move the dist a little then snap the throttle open and wait for the data on the scanner to reset. Choose top quality brands Cloyes, Competition Cams, DNJ Rock, Melling, Sealed Power, VR Gaskets. Connecting Rod Nut. 7L OHV V8 L31 Vortec Cam ROLLER CAMSHAFT Chevy Marine 5. you want the cam set at zero degrees if at all What will it cost to replace lifters and camshaft in Avalanche? Ok, these have roller lifters, the cam shouldn't wear in these. Advertised Exhaust Duration 287 Advertised Intake Duration 279 Basic Operating RPM Range 1,800-5,800 Cam Style Hydraulic roller tappet Computer-Controlled Compatible No Duration at 050 inch Lift 218 int. 03; Buy It Now +C $16. $209. 431"/0. Small Block Chevy Timing Chain Kit For 1987 And Newer Engines With OEM Roller Cam "Single Roller Design Got confirmation from the truck guys that the L98 cam would cause a loss of lower end torque over the L31 cam. Gm Performance 12530283 Vortec 350 Crate Engine Assembly Chevy L31-r Truck . Best of Mar 26, 2017 · Chevrolet Performance LT4 Hot Cam Install. lots of carpet. Of particular interest to engine builders is the new cam retainer (Part #8104-CR) with 3. It's not a huge deal. L31 Vortec project - Cam suggestions Discussion in ' I looked around and found the stock L31 cam specs, which are: Intake lift- . 5 rockers), you put 1. The L31 is not much more at $2000 bucks all new and never run with all the bells and whistles. Small Block Chevy V8 Casting Numbers To learn how to locate your casting numbers, casting dates and suffix codes, see Chevy V8 Casting Number Locations Page 1 and Page 2 . com: Chevrolet Performance 12480002 Small Block https://www. 050-inch tappet lift with a lobe separation angle (LSA) of 112 degrees. 1 ©2003-2006 Jan 05, 2019 · L31 cam specs: Author Message; Speeder. 1) Stock long block 5. 4 and roller cam. superchevy. com/i-6255412-14097395-hydraulic-rollerIncluding 14097395 - Hydraulic Roller Camshaft - HT383 Crate/Ramjet 350. (and injection system - since it's intended to retrofit into older stuff). Jan 01, 2019, 03:44:45 PM Welcome Guest but I have never touched an L31, or any Vortec engine for that matter. Slalom4me is offline. I am thinking of repacing the stock truck roller cam with an LT4 Hot Cam. Competition Cams. 7l Ohv V8 L31 Vortec Cam Roller Camshaft 209. Shop l31 push available for purchasing today online. Brand 600hp Big Block Chevy 496 Engine . Blueprint Marine 350 Dressed Roller Cam Vortec Heads 365hp Mll-mbp3550ctc. 5 and include that in your discussion w/ cam mfgrs. crankshaftcoalition. I was considering using it because I HAVE it, not buying him a cam …Apr 30, 2014 · 355 Vortec L31 with LT4 Hot Cam, Dart Vortec Heads, 1. Cloyes Street True Roller Excellent cam. 103,700 miles on the rest of the car. com/youtube?q=l31+roller+cam&v=9_QabO-aKQA Apr 30, 2014 355 Vortec L31 with LT4 Hot Cam, Dart Vortec Heads, 1. 050"- 191Increased power for your 1996 to 2000 350ci Chevy Vortec 5700 V-8 engine Our engine started as a stock L31 with 65,000 miles on it. Register • Search • FAQ • Memberlist • Usergroups • Log in Your engine is a roller setup already, stay with a roller cam for reduced friction, more free horse power, simply change cams. bin was the Hypertech 128192 chip to begin with. comwww. For some reason the Marine MFG's went with a custom reverse rotation roller cam for the OEM Marine vortec. Edelbrock Rollin' Thunder Camshaft for 1987-Later Big-Block Chevy 265-350 V8. Joined: 30 Apr 1999 1997 Chev ECSB L31 350 1997 GMC Sierra SLE RCSB, Ontario CHEVY ROLLER CAMSHAFT This (NOS) new Chevy 350 5 7 L31 Vortec Roller Cam and Valvetrain 0 results. Buy L31 vortec head long block. You may also likeCOMP Cams® Pro Magnum™ Hydraulic Roller Lifters Increase Performance Of GM Vortec 350 & GM LT1: one cam retainer, two retainer bolts and three cam bolts. You can always be assured of receiving the finest quality components in any Hydraulic Roller Cam Kit from Isky. Camshaft does have fuel pump lobe. 428 in. 96-02 Chevrolet Gmc 350 5. Including 14097395 - Hydraulic Roller Camshaft - HT383 Crate/Ramjet 350. I honestly don't think the cam swap (to the Ramjet cam) is worth it. RPO L31. 410s. Mar 13, 2012 · Ahhh, they might not have enough demand for a 4/7 swap in a hyd/roller to justify another run of cam cores. May 25, 2012 · The roller cams do not wear like a flat tappet cam. 6's on helps). 428 in. 00. 525 with 1. 7L Part 1 LS6 Valve Springs On A SBC L31 Vortec Part 2 Of Cam Swap Read the tech article on a Budget Vortec Head Cam 355 Build, brought to you by the experts at Chevy High Performance Magazine. 10 gears - 285/75/16 Tires 87 tbi engine installing 97 vortec heads and intake the tbi has flat tappet lifters the vortec has roller lifters id assume i use the tbi pushrods and the tbi lifters since a roller cam is ground diff … People have run double roller chains but even with the required clearancing and spacers the chain has rubbed on the plastic timing cover slightly. Used Comp Magnum push rods and GMPP LS7 lifters. 3k stall, 3. I had Comp Cams grind me a 215/224 @ . 2750. com/forum/comp-cam-xr270-hr-into-2000Nov 30, 2013 · So I'm rebuilding a l31 5. You can snag a used vortec L31 cam (same thing as 350 B Body LT1 cam) or even better is a used 1994-1997 LT1 Z28 cam. 7 L31 Vortec With Lifter Noise. Roller Series. 65 rockers on your engine. MACHINING VORTEC HEADS, and OTHER HEADS. 7L 24502586 - $275. The right of the parts on block is still pretty much the sameStatus: ResolvedAnswers: 4SBC LT4 Hot Cam Question - Offshoreonly. com/parts/nal-12530283This combination is paired up with a roller cam that has 0. I have a longer term plan to build a 383 stroker, but in the interim I have picked up a solid L31 Vortec 350 from a 2000 GMC 2500 Van - I am going to clean it up and do marine gaskets in it. the roller cam its a much better cam than the stock TBI cam, its already suited to run with the L31 engine combo, on top of being roller. 152 SINGLE ROLLER VERSION The perfect compliment to your Chevy Hex‐A‐Just® True® Roller, I have 350 chevy, I would love to add some power with a camshaft, checking the casting numbers I found : 10243880 for the block (not roller) 12558062 for the cyl heads According to some lectures, that block is used for an L31 vortec engine, and the same for the cyl heads. @. 42 gear will the car run pretty good, i mean power if i hit the loud pedle. This kit contains a Melling/Elgin roller camshaft and matching lifters. 12530282 GM Goodwrench Engine (L31) 5. 428" 1983 G20 Van, 350 TPI, Ported 906 Vortecs, Edelbrock 3817 Base, ASM oversize runners. 15. Here is Jons daily driver 1994 Suburban. F. Edelbrock Rollin' Thunder Camshaft for 1996-Later B/B Chevy 500+ (Gen V & VI) $323. Hydraulic Roller Cam Follower W Link Bar Small Block For Chevy Sbc 350 265-400. 31 Jan 2017 For stock power production, the hot ticket is the L31, Vortec-headed 350 offered from 1996-'02 in truck, van, and SUV applications. I've heard the LT4 HC in Lt1, L98, L31 & old school carbed rod engines it pretty much idles the same. Spring output is around 30% higher then stock springs which improves performance even when running a stock cam. 050 lift with . 050 in. with a 219 LPE cam, SuperRam intake and base, AFR195 heads, 3200 vigilante, 3. First tune Roller Tipped Rocker Arms. Add to Cart. com - the shop expert!Endure-X Solid Roller Lifters from COMP Cams are engineered to withstand the FInd great deals · Huge Selection · 95% customer satisfaction · Enjoy big savingsHighlighting a lot of L31 Push available on sale online. This cam is on national backorder so finding 1 used on ebay or 1 of the Vette forums is yoiur best bet. 5. 10. At least that's how it behaves in a benchmark 350; the cam is a tad more radical in a smaller displacement motor. You left out the LT "Hot" cam with 1. L30/31/29 distributer for igintion and the cam position sensor data. Comp Cams - $344. Engine is a 10243880 block with the stock iron Vortec heads. 95. Jan 21, 2010 · Stock 350 Vortec cam options Page1 - Discuss Chevy High Performance, Car Engine, and Chevrolet Tech topics in the Chevy High Performance forums at Super Chevy Magazine. 6 rocker arms. Keep lift under . 7L L31 is the premier industrial workhorse, providing the power needed to get the job done without sacrificing fuel efficiency or durability. To be short, a vortec motor with 10 to 1 comp, headers and the right cam and intake will be an easy 400HP. on the Fox Sports North channel! View 008 Chevy Vortec 5700 57 350 L31 V8 Swap Cam Engine Crane Roller Rocker Valvesprings - Photo 112158897 from Increased power for your 1996 to 2000 350ci Chevy Vortec 5700 V-8 engine. 285 Tooth. Tags: None. Dec 11, 2002 · Anyone running a L31 Vortec roller cam in their TBI setup? I can get the cam, lifters, retainers and pushrods for $175. 006 tappet lift. set. It might be Jon's Budget Vortec TBI suburban. Fit 96-02 Chevrolet Gmc Cadillac 5. Max lift is like . Jan 29, 2016 with a hydraulic roller camshaft. Although it seems that the new chain and sprockets would reduce mass, The cam sprocket was left solid, rather than webbed, specifically for additional mass. 7 Vortec) then it will already be a roller cam engine. I have seen them go for $50. The ramjet cam is what's used in the HT383E. $450. Buy L31 Push on eBay now! 2010-2015 Chevrolet - $5,225. 7 LT1 LT4 L98 L31 (Perf. 7) CHEVY ROLLER CAMSHAFT This (NOS) new roller camshaft is out of the - Flowtech custom ground hydraulic roller cam. Use a modest cam for the factory roller motors, maybe $300. The Ramjet engine is the same as the L31 engine, except for the cam. 6 rockers you can expect even more. Tooth Width - For Engines w / Roller Chain - w / o Balance Shaft Tooth Width - For Engines w / Roller Chain - w / o Balance Shaft The L31 has a roller cam and 9. Find Chevrolet Performance LT4 Hot Cam Hydraulic Roller Cam Kits 12480002 and get Free Shipping on Orders Over $99 at Summit Racing! These LT4 Hot Cam hydraulic roller cam kits from Chevrolet Performance are direct replacements for your stock LT4 hydraulic roller cam and lifters. 00 Cloyes Gear 9-1157 Timing Chain Set Street True Roller Sbc Vortec L31 Single Rol. 7 vortec L31 with 218/218 roller cam, single plane EFI intake, stock truck exhaust manifolds 2) Stock LM7 5. 6 Roller Rockers, Cloyes roller tming gear, ported exhaust ports heads,Ported lower intake, 78mm throttle body, Delphi 36lb spider injectors Author: HoneyBadgerOBSViews: 19Kcomp cam xr270 hr into a 2000 vortec - Hot Rod Forum https://www. 1997 Chevy Tahoe 4-Door 4WD L31/4L60E - 0411 PCM Swap - Spectre Cold Air - 78mm Throttle Body - MPFI Conversion - GMPP Cam (. The best used engine combination to look for would be the Vortec small block used in L31-equipped pickup 11 Apr 2006 Was the L31 a flat or roller tappet design as built by GM? If it is a roller design, am I right to conclude that it has the cam retainer plate, stamped roller spider retainer and the one-piece rear main seal? . HoneyBadgerOBS. Disc Sanders For Sale 96-02 Chevrolet GMC 350 5. with my combo the 700r4 an 3. 96-02 Chevrolet Gmc 5. 525 / . This particular cam is a great little upgrade for a TPI 305 or 350. D. 414 in. com Store Card on any purchase totaling $599 or more. Nothing compares to a Factory Original new GM Crate Engines when it is time to replace the worn out 350ci Vortec engine in your 1996 thru 2002 Chevrolet or GMC pick-up and Vans. I then removed all of the roller cam stuff from a 1992 Buick Xtreme Energy Camshaft™ Dyno Results Xtreme Energy Cams™ bridge the gap between Magnum street cams and race only cams. 525" Lift. Chevy 5. 900. 285 In. otherwise, no, not much different really, everything will bolt up with the right intake. Limitations: Increased cost, …GM 12530282 Replacement Vortec 350 L31 Crate Engine, 1996-02 made by Genuine GM Parts, for as low as $2,018. Hi-Rev Series. LT4 Hot Cam Install In L31 Vortec 5. This engine was replaced in favour of the more powerful and efficient LS-series of engines. ZZ4 Crate Engine This product may require vehicle validation(s) for proper fitment. Would this Shopwiki has thousands of results in 350+chevy+short+block+-+l31+roller+cam to choose from, find the best now! JeepForum. This hydraulic roller design is used on the 383 truck and Ramjet 350. 212/218 lift . Mar 18, 2004 · To the guy above quoting numbers from DD2000 with a roller cam, keep in mind that while DD2000 is VERY accurate in most instances, it has been proven to overestimate the power/torque of roller cam engines. CHEVY MARINE 5. Roller Cam selection help** New guy to this forum. Compression(stock L31) is I think 9. You can also find used factory high performance roller cams pretty reasonable. 525 with 1. 20. To get the info cut and paste the P/N's into www. The cams in stock Vortec engines are quite mild and The 5. Our Vortec kits are engineered specifically for Iron Vortec & 96 Iron LT1 heads. 457 Lift 262 duration @. This engine has 2 bolt mains, cast crank, one pice seal, hydraulic roller cam (. I have all the roller hardware, the vortec was complete when I bought it. com 1-800-456-0211 L31 Vortecs are also a good upgrade, but your gonna have to upgrade the valve springs. will this same modification need to be done to an L31 block or will an L31 starter work full Comp Magnum roller valvetrain, 270AHR cam, boosted's poly motor Play and Listen 355 vortec l31 with lt4 hot cam dart vortec heads 16 roller rockers cloyes roller tming gear ported exhaust ports headsported lower intake 78mm Dat Cam ! 355 Vortec L31 LT4 Hot Cam Mp3 - GM Performance :: View topic - L31 cam specs - … 22/12/2018 · I ran into these specs on ebay, they say its out of a Vortec engine for marine use. Basically a 4 bolt Vortec 350 with a roller cam. 6:1 roller rocker, this opens the valves to 0. Vortec L31 cylinder head. NEW 350 (5. I chose Magnum lobes rather than Xtreme anything for longer life. com/articles/0611em-vortec-small-blockSep 22, 2006 Those features are nice, but the real advantage in our low-buck power plan is the factory hydraulic roller cam configuration these engines are Aug 25, 2017 The lowdown on small-block Chevy hydraulic-roller cam distributor gears, lifter adjustment and break-in. com for vortec heads and read up on the whys and hows of tweaking the heads for larger lift cams. 3L is a 350 Vortec L31 The engine is a . 050" = 196'/207', aluminum roller rocker arms and HEI distributor. 6 ratio rockers over the LT4 hot cam on my build. Please don't hesitate to contact us directly if you question which spring is correct for your application. Shop l31 push for sale here online!new chevy 350 l-31 roller cam right out of new crate engine . very helpfull. The HT383 starts with a cast-iron block with four-bolt main caps, a forged steel crankshaft, a smooth hydraulic roller camshaft and a set of iron Vortec heads. 2102. 77. Cloyes Gear 9-1157 Timing Chain Set Street True Roller Sbc Vortec L31 Single Rol. These precision-engineered, extensively-tested camshafts allow you to choose the best cam for your application. 2017年3月25日2014年4月30日Buy Chevrolet Performance 14097395 at JEGS: Chevrolet Performance Hydraulic Roller Camshaft Small Block Chevy. Jan 06, 2019 · It's the highest lift most aggressive cam you can get for the GEN 1-E Vortec 350 rpo L31 that will work with the OEM valve springs and L31 cylinder heads. 6 or 1. (not aluminum LT1) That's right, no machine work required to set up a pair of these heads. of lift is 191 degrees for the intakes and 196 for the …Home / The Racing Cam Series . 75. Discussion in 'The Hokey Ass Message Board' started by I have a '96 L31 roller block that had the normal block off plate on it from the factory. 7L Part 1. 8/5(44)Brand: Chevrolet PerformanceBudget Vortec Head Cam 355 Build - Tech Article - Chevy www. I have a 98 Z71 as my daily and it moves my 5,000 lb truck quite well. hydraulic roller cam small-block using cast pistons and a stack The new COMP Cams® Hydraulic Roller Lifter Installation Kit for `91-`02 GM Vortec 350 and `91-`97 GM LT1 engines includes everything you need to install your Pro Magnum™ Lifters, including eight lifter guides, one lifter retainer, one cam retainer, two retainer bolts and three cam bolts. Mar 25, 2017 · Chevrolet Performance LT4 Hot Cam Install. roller cam. Xtreme Energy Camshaft™ Dyno Results Xtreme Energy Cams™ bridge the gap between Magnum street cams and race only cams. l31 roller cam fuel pump on vortec The major thing is the heads though, New redesigned heads based off the LT1 heads. 525 lift, single pattern, ported Super Victor intake, modded 750 holley vac sec, ported 906 vortec heads, Mahle flat top pistons, stock crank and rods. 28. 431'' Int. I was considering using it because I HAVE it, not buying him a cam that has to have a tune to run. 4 Bolt. This item Lifter Upgrade Kit (Set Of 16) LS7 Hydraulic Valve Lifters For All LS Engines 17122490 L30/L31/LS1/LS6 HYLIFT Johnson USA-Made Roller Lifters & TRAYS & BOLTS for Chevy 5. 414" Chevy casting numbers for blocks and heads for small block V8 engines by Mortec. Has anyone done this? If so, what was the result? Thanks. The o-ring listed above is just The engine I am building to swap in place of the 4. Truck really moves well with the 3. of intake lift and Chevrolet Performance LT4 Hot Cam Install. GMPP LT4 HOT CAM KIT (P/N 12480002) INSTALLATION INSTRUCTIONS: APPLICATIONS The hot camshaft is designed for all hydraulic roller camshaft small block engines produced from 1986 to present including the Gen I, Gen IE, and Gen II variety. 431 I / . For over 35 years ISKY Steel Billet Roller Cams have been machined from solid 8620 steel bar stock. 85. 6 roller rockers. 2l 31k Oem Lkq. The new small-blocks also use a cam plate to keep the roller cam Crane Cams is the original leader in performance camshafts for street and race engines Roller valve lifters for reduced friction and improved L31) 0 100 200 300 400 500 600 0 10 20 30 40 50 60 70 ENGINE SPEED (rpm x 100) TO RQ UE (l b-ft) 0 100 200 The HT383 that was available from GM uses Vortec L31 heads, the GMPP 383 shortblock and the Ramjet 350 roller cam with specs of 196°/206° duration at 0. 209. 050'' Lift; 109° Lobe Centerline This camshaft is a great upgrade for 1996-2000 Chevy/GMC trucks equipped with the L31 Vortec 12 Oct 2013 Hello all, New guy to this forum. 3 5. Duration at 0. but 2 bolt mains. . 7 Liter Roller Camshaft-Camshaft Specsifications- Intake Lift- . L31 Push Ready to Ship. Roller cams dont wear like flat tappet cams. Cloyes Performance - $68. 414" Exhaust Lift- . Isky Hi-Rev Series cams are manufactured from the finest,high quality Proferal Cast Iron Billets. cab short bed 1500 with about 167,000 miles on a 5. M. This cam is great for additional bottom end torque. Feb 18, 2011 · Chevy Vortec 5700 L31 350 Engine? Ok, so I have had this engine for about a year, I've been 1996-00 still 1 pc. This cam is great for additional bottom end That said, just did (last summer) an L31 Vortec build on my 1998 K3500: 1) GM Goodwrench stock 4 bolt replacement short block. Great balance between power and economy. Drive Belt Tensioner Pulley. It has been modified with Chevrolet Performance Hydraulic Roller Camshafts 12677151 (Duration at . The GM Performance Parts HOT hydraulic roller is a great, affordable cam ($175 from Scoggin-Dickey Performance) and begs to be matched with a set of Vortec heads. Shop with confidence. 6 roller rockers, there is a few great write ups on the cam swap to a vortec 5. 99 Comp Cams 07-464-8 Xfi Hydraulic Roller Camshaft Gm Lt1 And Lt4 350ci 1995-97 Comp Cams - $344. of lift is 191 degrees for the intakes and 196 for the exhausts, with 111 degrees of lobe separation. 1 Find Chevrolet Performance 350 C. The duration at lash point in degrees (intake/exhaust) is 275/280 . 495 if 1. I am running the L31 Marine crossram intake and Doug Thorley Tri-Ys. Vortec . Even though hydraulic roller camshafts don’t require Jul 09, 2007 · Stock L31 Intake Lift- . Your 4. Chevrolet 8. Suggested Retail: $290. Choose top quality brands Cloyes, DNJ Rock, Melling, Sealed Power, VR Gaskets. It has a wheel on its end like that of a measuring wheel, which rolls by the use of needle bearings. com/Automotive/Roller CamsAdFind super cheap Roller Cams and save big with BEST-DEAL. 00!!!Jul 11, 2006 · Could a moderator please make this a sticky. Lunati installed one of its Streetmaster hydraulic non-roller-tappet grinds that offers reasonable idle quality with just a touch of that performance "rump-rump" so dear to our hearts. Jul 25, 2018 · I am running the L31 Marine crossram intake and Doug Thorley Tri-Ys. Lashing the valves on '99 350 vortecThe stock Vortec L31 roller cam was a HUGE improvement compared to the flat tappet stock TBI camshaft! The 1990 K2500 the engine was installed in, is mostly used for towing. 94 Silverado Vortec 5. I've been playing around with a few different lobes this morning and am of the opinion that the first cam I recommended (Xtreme Hydraulic Roller #3301) on a 108 +4 is the best choice when paired with 1. Duration: 196° Int / 206° Exh. I dont think Best Answer: Hydraulic roller cam and lifters. I am in the process of (re) building a SBC 5. You may also like. Camshafts, crankshafts, blocks, engines, pistons Roller valve lifters reduce friction and improve performance. 1:1 compression ratio is perfect for regular gasoline. ZZ4 Crate Engine PAC-12495494 - Pace Performance LT4 Hot Cam Spring Install Kit, For Camshafts Up To . If you are looking for that extra performance and consistency needed to compete at the strip but you still want to be able to hit the local cruise-in, this line of Lunati Street/Strip camshafts are just what you are looking for. hydraulic roller cam small-block using cast pistons and a stack The GM Performance Parts HOT hydraulic roller is a great, affordable cam ($175 from Scoggin-Dickey Performance) and begs to be matched with a set of Vortec heads. These will also fit V6 model engines that were Factory Roller. 305 TO 383 ENGINE SWAP. 7 906 062 Cylinder Heads Rebuilt Chevy Vortec 350r 96-02 Master Engine Overhaul Kit Roller Cam Included. block Chevy 350 Vortec L31 V8 engines. 1 Liter Vortec 496 Big Block Motor And Transmission. Hi I have a hot cam in a 350 L31 in a 2000 rcsb 4x4 S10. It might be Chevrolet Performance’s HT383E crate engine is an affordable and more powerful direct replacement for the tired 350 engine in your 1996-99 full-size GM truck or SUV. 2) Comp Cams custom ground hydraulic roller cam shaft (spec'd by Comp cams based on my daily driver & horse trailering needs): Intake = . head #906or 062. L31 heads, due to the very efficient Buy a 1998 Chevrolet K1500 Suburban Timing Chain at discount prices. From GMPP catalog 12480002 350 Hot Cam …Sep 24, 2018 · MACHINING VORTEC HEADS, and OTHER HEADS. 473/. 1 - $3,000. A high-flow cylinder head with straighter intake ports and a higher compression ratio delivers significantly better combustion for all fuels. Fill Your Cart With Color Today!Types: Fashion, Home & Garden, Electronics, Motors, Collectibles & Arts, Toys & HobbiesGet super cheap Roller Cams! | Top Roller Cams up to 70% offhttps://www. Oct 03, 2015 · The HT383 that was available from GM uses Vortec L31 heads, the GMPP 383 shortblock and the Ramjet 350 roller cam with specs of 196°/206° duration at 0. com) Several performance magazine articles of a couple years past using it with the L31 heads as your 97 has. 0 NON-AFM LS1 LS2 LS3 LS7 (Lifters & Trays)Reviews: 3DynoSim combinations - Crankshaft Coalition Wikiwww. equipped with the L31 Vortec 350 Engine. Featuring vortec 900809108883 metal line available for purchasing today. Reed Custom Roller cam, 700r4, 12 bolt with 3. 050 in): 191° intake / 196° exhaust Carburetor Included: GM part # 12530283 - Crate Engine - Part #12530283 Long Block L31 HD Engine. block #880. 4:1 compression ratio, powdered metal rods, plastic timing cover, 8" balancer, oil pan, valve covers. 1 . When GM Performance Parts released the L31 Vortec heads for small-block Chevy engines in 1996, they were an instant hit with the hot-rodding crowd due to the great flow numbers (outflowing the venerable Bow Tie heads), efficient 64cc chambers, and great price (under $500/pair, assembled). Car and Truck Repair Parts 96-02 Chevrolet Gmc 350 5. 7 vortec camshaft. Things I did to get it to be better. . M. Shop l31 push available for purchasing today online. 414" Exhaust Lift- . Stock L31 Vortec 350 (5. com) chip, 160 stat, stock exhaust, stock induction w/ K&N filter. Jan 24, 2007 · L31 Vortec project - Cam suggestions Discussion in 'High Performance Modifications' started by dwright406, Jan 22, 2007. When I set to zero lash do I do this just after spinning the oil pump ,to get the oil preasure up ,or as shes sat for the last month? My guess is after getting the preasure up. I then removed all of the roller cam stuff from a 1992 Buick Jon's Budget Vortec TBI suburban. Engines w/o balance shaft. 451 lift, 196/206 duration, 109 LSA) - 1. but in the interim I have picked up a solid L31 Vortec 350 from a 2000 GMC 2500 Van - I am going to clean it up and do marine gaskets in it. Xtreme Energy Cams™ provide increased torque, vacuum, response, and power while still providing quiet operation of the valve train and the durability required in daily driven vehicles. 0 out of 5 stars 1. 50. Rpm air gap intake Comp cam XR264HR . vin r. I'll be adding more info relating to cams and cam swaps, but this should be a good starter. 99. This engine already has the right heads, plus it uses a hydraulic roller cam. 7 Lt1 Lt4 L98 L31 Us-made $105. Cummins Cam - $340. valve cover bolts thru center. 430 to . the truck vortec is a cr of 9. 5 Small Block Hydraulic Roller LT4 Hot Cam; Small Block Hydraulic Roller LT4 Hot Cam 24502586. Got confirmation from the truck guys that the L98 cam would cause a loss of lower end torque over the L31 cam. Chevy LS1 Hydraulic Roller Camshaft If you are uncertain as to which cam profile best suits your needs, please contact our technical support staff at 619-661-6477. Please contact us to confirm correct vehicle fitment and usage. Roller rockers can also be used in overhead cam engines. 7l Vortec Ohv Full Gasket Bearing. In-Depth Outdoors TV Schedule Airing on Fox Sports North - 8AM Sundays (CST) New In-Depth Outdoors TV episodes return this Fall, Sundays at 8 a. Jan 25, 2011 · Best Answer: Hydraulic roller cam and lifters. 10 gears in had 3. 940"/1. This summer I installed a L31-R crate engine. that's really the only drawback to the heads, they dont allow Mar 31, 2010 · Good cam to use in those engines is a 94-97 LT1 Z28 cam. the 87+ blocks are ready for roller cam. 42 this made truck alot funner drive. Feb 06, 2015 · The Vortec L31 engine is a "traditional" 5. 7 L31 Vortec 350. $260. Its cheaper to buy a new L31 for a 96-99 truck and then you get the roller cam and roller equipment as well. ebay. 52:1 roller rockers (PN 1417-16) free up Apr 19, 2015 1996 4wd 1500 L31 350 Vortec with a 1995 Camaro 5. But I'm happy to help with some pointers. I'd look at a 215 to 220 at . l31 roller camBuy Chevrolet Performance 14097395 at JEGS: Chevrolet Performance Hydraulic Roller Camshaft Small Block Chevy. Distributor Drive Gear for a Vortec Roller Cam « on: September 05, 2012, 06:25:10 PM » My 85 Pickup has a later model, Roller Cam Vortec Engine (the engine number crosses to a ZZ4 engine)I've read there may be an issue with the Distributor Drive gear. 42 gear ratio. 7L L31 Features & Specifications 5. So save yourself the headache and get a quality roller rocker that is designed for late model centerbolt heads. See what makes SD Parts stand apart from the competition today! SDParts. 050"- 191*Status: ResolvedAnswers: 4LT4 Hotcam in an L31?? | Chevy Truck Forum | GMC Truck www. First I added a vmax spacer that helped top end didn't do anything for bottom. comhttps://www. of intake lift and 0. 10185071 - Hydraulic Roller Camshaft -G. Some of the lifters kept their pressure, while others bled off as I turned the motor to go to the next valvefreaked me out enough that I did it twice. Used in a 305 chevy with l31 vortec heads. Find great deals on eBay for vortec 5. Increased inertia in the system reduces the tendency for cam torsion. Fit 96-02 - $749. factory roller cam DOUBLE ROLLER VERSION center distance = 5. 294-inch bolt spacing, which was specially designed for these two engine applications. 218/. 7L marine engine (one-piece rear main seal, roller cam and roller lifters). A good choice for mild performance, RV and torque Hyd Roller cams w/ up to 218 degrees duration @ . 7l Ohv V8 L31 Vortec Cam Roller Camshaft For Sale Online. Worked great. At least the cars did get a roller cam which helped them make the 170hp GM claimed they would make but the trucks don’t even come close. 00-02 Chevrolet Montecarlo Impala 207 3. 7 Litre Vortec Specs & Information. Engines w/ roller camshaft. 00-02 Chevrolet - $215. Motor uses a Gen. Search. In a Scoggin-Dickey Parts Center is one of the largest automotive supply centers in the world. 050"- 191* Exhaust Duration @ . 473), Doug Thorley Tri-Y Headers and the upgraded MPFI Spider. So I was going to replace the lifters. 6ers instead of . 7L Part 1 - YouTube www. Competition Cams 11-770-8 Xtreme Energy Camshaft 96 G30 Van G3500 Van For Sale Online. 0l Vortec Engine Comp Cams Drag Race 275282 Solid Roller Cam For Chrysler 383-440. Skip to main content 96-02 Chevrolet GMC 350 5. Long story short, it has what I believe to be lifter knock. use stock pushrods and are quiet. Engines with roller camshaft. 550" Lift w/ 130 Lbs seat pressure . cloyes vortec single true roller timing chain? the water pump drive teeth on the cam gear. summit. 7 and can be found in almost every fullsize truck from '96 to 2000 and the big Express vans from '96 to '03. 280" wide sprockets. hotrod. Edelbrock performance Camshafts are developed as a performance matched complement to our Cylinder Heads and Intake Manifolds. Cloyes two-piece timing cover makes the Hex-a-Just True Roller timing adjustment even easier. 09-22-2013, 10:35 PM With the vortec heads and other L31 engine parts, I believe this is good for 290 - 300 HP depending on intake and carb. com/youtube?q=l31+roller+cam&v=6f1O-KUFEDk Mar 25, 2017 Chevrolet Performance LT4 Hot Cam Install. 3 5. 510 cam i did not have to enlarge the pushrod hole. offshoreonly. Mine was borderline at . Add to Wish List Add to Compare. It is the comp cams xr 270hr. tapped holes to accept all of the factory roller cam stuff (spider, cam retention plate). All GM industrial engines are Vortec engines. Discussion in 'The Hokey Ass Message Board' started by v8nova64, Apr 28, 2012. also i'm going to be running a edelbrock performer an 6oo holley on the vortec motor, headers into flowmasters. vin r. The L31 Vortec comes in two different casting numbers, 10239906 (#906) or 12558062 (#062). 7) CHEVY ROLLER CAMSHAFT This (NOS) new roller camshaft is out of the vortec engine made for marine applications. From Crankshaft Coalition Wiki on a Vortec block from 1995 or later it is at least provisioned for a roller cam if a 95 and from 96 up Chevy 350 5 7 L31 Vortec Roller Cam and Valvetrain 0 results. Vin R has better heads (Vortec L31) , a roller cam, and central sequential fuel injection. I plant put 350 vortec to my boat ,would any one help me choice right cam for my camshaft for marine vortec 350. 6 roller rockers, what else would be needed besides the Ramjet rockers themselves and the Ramjet springs? Anything else different about the L31 heads? Also, how would this engine run with the use of a carb compared to the FI Ramjet engine if all else is the same. You can reuse the stock roller lifter which is the great thing about them. 428" Intake duration @. In addition to the impressive head flow, the L31 also featured a hydraulic roller cam and a Chevy vortec 350 L31 roller cam 96 97 98 99 stock camshaft | eBay Motors, Parts & Accessories, Car & Truck Parts | eBay!12 Jul 2016 Once we finished the installation, which included a hydraulic roller Crane Cams camshaft and valvetrain bits, along with 008 Chevy Vortec 5700 57 350 L31 V8 Swap Cam Engine Crane Roller Rocker Valvesprings Photo. 6 rockers on my late model 350 and thought about that as i was doing it. Chevrolet Performance LT4 Hot Cam Install. (4 bolt mains)The Racing Cam Series. 2 Gm Gmc Chevy Escalade Suburban Vortec 350 5. oo more for four bolt mains but loose the roller cam. The 1 pc. 050 lift. 050 roller with a 112ish LSA and about . You can order replacement cams and roller lifters for that engine correct '97 GMC 1500 5. of intake lift and Find great deals on eBay for factory l31 sbc roller cam oem gm cam factory l31 sbc roller cam oem gm cam. Find DealerFeb 08, 2010 · If it's in fact a L31 (5. Engine is a 10243880 block with the stock1 Oct 2001 Read the tech article on Inexpensive Roller Cams, brought to you by the experts at Chevy High Performance Magazine. $388. Vortec L31 engine HP+ setups. Thinking of throwing 1. The camshaft is one of the most important factors in determining an engine's overall performance profile and capability. Competition Cams 96-203-4 High Energy Camshaft 1200-5200rpm For Sale Online. Competition Cams . 7 vortec for my 2000 denali and I picked out the cam I wanted. 2002 8. amazon. This item Lifter Upgrade Kit (Set Of 16) LS7 Hydraulic Valve Lifters For All LS Engines 17122490 L30/L31/LS1/LS6 HYLIFT Johnson USA-Made Roller Lifters & TRAYS & BOLTS for Chevy 5. Cam, Custom Ground HYD ROLLER 232@050/. Guaranteed lowest price!Jul 12, 2016 001 Chevy Vortec 5700 57 350 L31 V8 Swap Cam Engine Intake Photo Crane Cams Magnum 1. PCI specializes in supplying OHC timing sets & components for the professional installer. $208. Reviews: 1L31 Roller Cam Sold Direct on eBay | ebay. 3 install instead of the L31 5. 026" compressed inch head gaskets to bump the compression a bit p1345 is the crank/cam sensor correlation. New Timing - $159. Fits Chevy 350 96-2000 Remanufactured Engine Vortec. Hydraulic Roller Series. Third got TC and started to do some tuning. - Flowtech custom ground hydraulic roller cam. Second I put 4. I'm guessing GM made a real nice roller cam that would work fine with a basically stock old truck. If it's any help to you I run Comp Cams Extreme Marine 272 roller in my twin 355 Vortecs. Serpentine System For Lt4 Supercharged Generation V 218 Frame 10205043 90 550hp Camshaft Perf Hyd Competition 195cc Manifold Unit 447 C7 2015 19371521 Restore 1992 1997 Roller Hydraulic Camshaft Chevrolet Performance Lunati Chevy Comp Cams West Gm Performance 12530283 Vortec 350 Crate Engine Assembly Chevy L31-r Truck . 2010-2015 Chevrolet Camaro Engine Motor 6. (Only 5 Remaining) PCI specializes in supplying OHC timing sets & components for the professional installer. This motor has been professionally remanufactured to meet or exceed GM OEM marine engine stock specifications. stroker97k1500 wrote: I am not sure of this but don't you have to machine the stock l31 heads to compensate for the larger lift of the lt4 cam to prevent coil bind?Nov 09, 2011 · The only current crate engine from GMPP that is a GEN 1 engine is the HO350 which is an L31 Vortec 350 with a flat tappet cam 212/222 installed. New and Used Automotive Parts and Accessories On Sale. This timing is a bit more aggressive than the L31 production cam of 191/196 degrees at . I figured this should clear up some of the multiple posts just asking the specs. Apply now. You can buy a decent roller cam reasonable sometimes, new and used. 462/. To the guy above quoting numbers from DD2000 with a roller cam, keep in mind that while DD2000 is VERY accurate in most instances, it has been proven to overestimate the power/torque of roller cam engines. 428" Increased power for your 1996 to 2000 350ci Chevy Vortec 5700 V-8 engine Our engine started as a stock L31 with 65,000 miles on it. Toyota Oem-engine - $3,824. Conversion Gasket Set. 050" Pushrod length 4 vortec head swap. 5 in. My setup is: Engine: L31 SBC 350. 459 with 117 LSA. Roller Camshaft Cam 258 If you already have a cam in and just want more lift and more duration (or cannot achieve it with a cam and 1. / . Need to find the specs on the cam first. 0 NON-AFM LS1 LS2 LS3 LS7 (Lifters & Trays) Buy L31 vortec head long block. 42 gear will the car run pretty good, i mean power if i hit the loud pedle. /287 exh. 3 install instead of the L31 5. 6-Point Bolts and Washers, Black Oxide, quantity of 8. 4:1. 451" of lift on a 109° LSA produces 340 hp@4500 and 435 lb/ft of torque at 4000rpm. Heads: Vortec 906. 460" lift. 447/. Based on Lunati's newest computer designed cam profiles, this series of Solid Roller Tappet camshafts are designed specifically for drag race applications where mid to high RPM performance and round after round consistency is most critical. Apr 30, 2012 · 350 vortec 400+hp build. 44. Combined with mechanical (solid) lifters, they are extremely popular for high-performance dual purpose and competition engines. 414 in. This combination is paired up with a roller cam that has 0. now my next Q, if i take the vortec cam an install it in a 88 305 will it boost the power, yes it is a roller cam block. 7l Ohv V8 L31 Vortec Cam Roller Camshaft Genuine Volkswagen - $148. 7 L31 Vortec engine. Cloyes Performance 9-3500tx9 Street Billet True Roller Timing Gear Set. i believe comp and crane both have fuel injection roller cams that will work with the computer. These crate engines are high-performance drop-in engines offering substantially more horsepower than the factory original. Hei Distributor Holly carb 650CMF Alternate cam would be comp XE262H . 12480002 350 Hot Cam Kit $580 (partszoneonline. 7 350 VORTEC Roller Cam and Lifter Kit lifters Mercruiser - $362. Skip navigation Sign in. 428" Location: Main Index » Forum Index » Trucks-Vans-SUV » 88-98 Fullsize Trucks, Vans, Suburbans, Blazers, Tahoes » L31 Camshaft choice? (for max torque) (for max torque) FusionBB™ Version 2. 61. Competition Products provides high performance engine parts, tools, and accessories for the engine enthusiast. Last edited by Lennox60; 12-03-2011 at RockAuto ships auto parts and body parts from over 300 manufacturers to customers' doors worldwide, all at warehouse prices. 7l Ohv V8 L31 Vortec Cam Roller Camshaft. From what I understand, since this engine has a roller cam, I can replace just Dec 04, 2011 · SBC LT4 Hot Cam Question. 451'' Exh. If you would like specifc A/C info, please e-mail me. G-Body Tech Forums. summitracing. Cummins Cam Timing Wedge Tool Isx Same As 3163021 With Cam Gear Puller 3163069. Actually the L31 is a great motor to start with, you've got a 4 bolt main, hyd roller cam and heads that flow better than most other gen 1 SBC. GM engineers incorporated Vortex science into their engines to create a better air-to-fuel mixture through the combustion process. Sep 18, 2008 · Roller Rockers for L31 Vortec Heads Discussion in 'High Roller rockers (Full rollers, NOT just the tips), have a hard time fitting with centerbolt valve covers. 500 lift to really wake up that motor. * This kit also works with some Hydraulic Roller cams. 00!!! Roller cam/lifters (the vortec was the 1st gen 1 truck engine to a roller cam, car engines started in'87 with roller cams) Can't use a block mounted mech. hotrodders. 7. 38. 431"/. Xtreme Energy Cams™ provide increased torque, vacuum, response, and power while still providing quiet operation of the valve train and …Oct 14, 2013 · **5. 7l Ohv V8 L31 Vortec Cam Roller Camshaft. The HT383 is rated at 330hp & 440#ft of torque. for the exhausts. 050 lift cam on a 110° LSA advanced 4° to a 106 ICL. Advertised Duration 279 int. The factory hydraulic roller lifters have been known to run for 750,000 miles. 7l Ohv V8 L31 Vortec Cam Roller This Roller Cam crate engine produces over 375HP & tons of torque. Trq Thrust IIs. Most '87 - '93 GM cars came with roller lifters, but most '87 - '95 trucks came with flat tappet lifters in roller lifter style blocks. 11. 7L) VORTEC marine engines. 7L L31 Tech SpecsMar 15, 2005 · Pushrod length 4 vortec head swap. 2 bolt main. Page 1 of 3 1 2 3 Next > If you're on a budget, use your rocker money towards a nice roller cam; plan on staying 1. 6:1 roller rocker arm with specs of 218/228 degrees of duration at . FWD, balance shaft, crank driven oil pump, DIS, hydraulic roller camshaft, integral PCV, roller rocker arms, Gen5 M90 Supercharger Returnless fuel system, fly-by-wire throttle control Special notes considering the 3800 Series II N/A and SC engines: The series II 3800 is a redesigned version of the 3800 (Series 1) V6. Famous grinds like the 5 Cycle 7000, the 505 Magnums, the 550 Super Le Jun 29, 2012 · Vortec L31 engine HP+ setups. Joined: 30 Apr 1999 1997 Chev ECSB L31 350 1997 GMC Sierra SLE RCSB, Ontario CHEVY ROLLER CAMSHAFT This (NOS) new Find Chevrolet Performance 350 C. I also decided on Scropion 1. Used 8. Page 1 of 2 1 2 Next I looked around and found the stock L31 cam specs, which are: Intake lift- . 7 vortec L31 with 218/218 roller cam, single plane EFI intake, stock truck exhaust manifolds 2) Stock LM7 5. 7 L31 Vortec 350 Hyd. 480 I want to run . The only thing I had to give up was a mechanical fuel pump. 96-02 Chevrolet Gmc 350 5. 350 roller block hunting--tips needed. If youre sticking with a roller cam block (mine was truck block without roller cam provisions), then thats sweet. Those sites I linked have all the discussion the OP could want. 444 lift, 266 duration, and 204 duration at . Head and Cam Comparison. Joined: 30 Apr 1999 1997 Chev ECSB L31 350 1997 GMC Sierra SLE RCSB, Ontario these are the 1996 specs 96 L31 Camshaft Profile NEW 350 (5. 49. Oct 14, 2013 · Hello all, New guy to this forum. Blueprint Engines - $3,345. Voodoo Hyd Roller Cam - LT1 LT4 270/278 LT4 Hotcam in L31 . 7 L 350 Sbc. The 88 block isn't setup for a roller. GMPP 350 Edelbrobk Rpm air gap intake Comp cam XR264HR . 7 vortec do not have stander length or the lifters like to know more about it - Answered by a verified Chevy Mechanic tbi has flat tappet lifters the vortec has roller lifters id assume i use the tbi pushrods and the tbi lifters since a roller cam is ground diff 10185071 - Hydraulic Roller Camshaft -G. 94 Silverado Vortec . 6" Comp Cams Magnum Roller Rockers - Pace Setter Shorty Headers - Magnaflow Hi-Flow Cats - Magnaflow Muffler - 4. w/ . 469 (flat hydraulic lifter). m. If your block has '87+ OEM-style roller cam provisions but does not have roller components fitted, COMP Hyd. Verry happy with this cam for smaller displacement v8s. 7L OHV V8 L31 Vortec Cam ROLLER CAMSHAFT. 7 roller rockers. The BBCs and the roller cam stuff I don't have any experience with. All my experience is with flat-tappets tho. ShawnBuy a 1996 Chevrolet C1500 Timing Chain at discount prices. 7 350 VORTEC Roller Cam and Lifter Kit Hello all, New guy to this forum. 431"/0. CHEVY CRATE ENGINE – 375 HP. 600, add self aligning roller rockers, and you The HT383 small block crate engine can take your pre-1980 GM truck's capabilities to the next level - see images, dyno specs, installation info and more. 3 with stock cam, truck intake, truck exhaust manifolds Trying to decide if I should do an LM7 5. I did use a geardreive in my build) I believe a cam will idle the same way no matter how the engines fed, carb or F. Oem 19179012 - $199. C $285. Special offers and product promotions. Find Chevrolet Performance 350 C. this engine has a roller cam, I can gmpp lt4 hot cam kit (p/n 12480002) installation instructions APPLICATIONS The hot camshaft is designed for all hydraulic roller camshaft small block engines produced from 1986 to present including the Gen I, Gen IE, and Gen II variety. I'll be adding more info relating to cams and cam swaps, but this should be a good starter. Discussion in 'The Garage' started by mr Another "if" is the lift the stock L31 setup will take. The Summit part numbers are good, but the links are not. There is much more to a cam profile than simply . 96-02 Chevrolet GMC 350 5. 050" LT1 Valve Spring Kit, Moderate to Hot Cam Profiles, 135 Lbs Seat Pressure, Vsk4J21-Q5. Tooth Width - For Engines w / Roller Chain - w / o Balance Shaft Tooth Width - For Engines w / Roller Chain - w / o Balance Shaft 96-02 Chevrolet Gmc 350 5. 47 Comp Cams Xtreme Energy 220230 Hydraulic Roller Cam For …96-02 Chevrolet Gmc 350 5. Of course, that kind of lift will necessitate better springs. Do you recommend change the roller lifters? My budget for the heads and cam is like $550. 451" lift, Dur. Exhaust = . 050 lift cam on a 110° LSA advanced 4° to a 106 ICL. 215/223, Lift . Figured I could live with that. Aug 27, 2008 · As much as I don't want to support the use of a camshaft for just it's idle characteristics. plastic timing cover with crank sensor. The only current crate engine from GMPP that is a GEN 1 engine is the HO350 which is an L31 Vortec 350 with a flat tappet cam 212/222 installed. If a person wanted to upgrade an L31 to the Ramjet cam and the 1. It comes with the fuel pump lobe so that it can Chevy 350 5 7 L31 Vortec Roller Cam and Valvetrain 0 results. L31 Vortec project - Cam suggestions Discussion in ' I looked around and found the stock L31 cam specs, which are: Intake lift- . 7 6. 1:1 compression ratio is perfect for regular gasoline. 050" - 196* Lobe Centerline- 111 Keep in mind there is 2 types of Hydraulic cam/lifters. The two-piece timing cover allows access of the cam sprocket timing adjustment without removing the entire timing cover. the '99 350 has a factory roller cam. com/www. Removing the timing cover risks damaging the timing cover gasket. Gm Performance 12530283 Vortec 350 Crate Engine Assembly Chevy L31-r Truck . Product Details. Thread starter for ideas concerning the engine you can look into roller cams made by various companies and look up tech articles on sites like carcraft. You're definitely going to need bigger injectors for 450hp. HP/TQ numbers from a stock L31 are 255hp/330tq. Single row roller chain. /228 exh. Chevy Gm Race Direct Oil Hp Hydraulic Roller Lifters Lt1 Lt4 L98 L31 L05 Vortec Lt4 Stage Lt4 Thermostat Lt4 Tooley Lt4 Brian Lt4 Mishimoto Lt4 Fits Lt4 Exhaust Lt4 Clutch Lt4 Clutchxperts Lt4 Header Lt4 Camshaft Lt4 Tuner Lt4 Supercharged Lt4 Find Engine Mounts, Hemi Engines, Rebuilt Engines, Transmissions, Engine Components, and more. com/wiki/DynoSim_combinationsThis build uses a low-cost hydraulic flat tappet cam and the stock L31 valve springs and retainers. Mar 15, 2005 · Pushrod length 4 vortec head swap. than the SP350/357 but has the exact same specs as the L31-R other A roller rocker is a rocker arm that uses bearings instead of metal sliding on metal. This hydraulic roller tappet is used on the 350 ZZ3 & ZZ4 engines. And no, I didn't degree the cam, I made a few posts about that on fullsizechevy. The Chevrolet small-block engine is a series of V8 automobile engines used in normal production by L31 The Vortec 5700 L31 The engine uses a hydraulic roller Late model 1996-current Vortec 5. I'm sure you could hit your power goal even easier with a roller. 459 Lift 257 duration @ . The industry’s best USA built GM 350 325 HP engine with name brand parts, roller cam, roller lifters, and a 5 year warranty. I have seen numbers for stock L31 vortec head cam lift anywhere from . 414/. Good cam to use in those engines is a 94-97 LT1 Z28 cam. Once you are bitten by the performance bug i cannot leave the Yukon alone. Loading Unsubscribe from  Dat Cam ! 355 Vortec L31 LT4 Hot Cam - YouTube www. ShawnRe: Lashing the valves on '99 350 vortec I just put 1. Competition Cams 23-707-9 Drag Race Camshaft. If it's in fact a L31 (5. The Racing Cam Series. Find great deals on eBay for chev vortec cam. Camshaft, TPIS Super L98 Hydraulic Roller Camshaft, SBC 87-92, LT1 93-94. Stock HO cam (. all were roller cams. Got confirmation from the truck guys that the L98 cam would cause a loss of lower end torque over the L31 cam. The ramjet engine is rated at 350hp & 400#ft of torque. 73 gears. 0 NON-AFM LS1 LS2 LS3 LS7 (Lifters & Trays)Reviews: 3Amazon. I have a '96 L31 Jon's Budget Vortec TBI suburban. I. 2112. 00 View Item Details Howards Sbc 305-350 Chevy 290298 560560 110 Hyd. rear seal engines uses a diff style cranksaft and flexplate/flywheel. com › Modification › Engine & PerformanceMay 14, 2008 · A good cam for you woudl be a stock LT4 cam from a 1996 Corvette GrandSport with the LT4 cam. intake and a milder roller cam, would be more useful to '97 GMC 1500 5. I dont want to stroke it i already have a crankshaft, looking for cam and head info. Cummins Cam - $340. With a 1. Blueprint Mbp3550ctc Gm 355 Dressed Marine Engine, Cast Iron Vortec Heads Weiand Chevy Small Block Vortec L31 Fastburn Long 6-rib Belt Universal Polished. GM also uses the same springs for the 151' roller cam that is in the SPO 357 HP 350 HO engine. OEM replacement GM PERFORMANCE LT4 Hot Cam Hydraulic Roller Camshaft Chevy LT1 5. 451" of lift on a 109° LSA produces 340 hp@4500 and 435 lb/ft of torque at 4000rpm. Jun 29, 2012 · Vortec L31 engine HP+ setups. Turns out its a retro fit for non roller blocks. With . These profiles are designed to enhance throttle response and low end torque in vans, trucks, passenger cars and mild marine applications while delivering fuel efficient motoring. People have run 10s with that cam in forced induction applications and it is very smooth and works great with a carb. 888 This camshaft is a great upgrade for 1996-2000 Chevy/GMC trucks equipped with the L31 Vortec 350 Engine. 7 L31 Vortec 350. Engines without balance shaft. both are iron cranks and powered roda and hyp pistons. stroker97k1500 wrote: I am not sure of this but don't you have to machine the stock l31 heads to thanks old bogie. These very limited production cams bring BIG $$$ on the open market ~ where as the more common reverse rotation flat tappet cams are normal priced. Varying types of Vortec Roller Cam on sale today! Buy Vortec Roller Cam now. Dec 30, 2018 · Voodoo Hyd Roller Cam - LT1 LT4 270/278 Product Description LT4 Hotcam in L31 . com and they all told me not to worry about it. This includes the roller cam and good vortec heads that are new. 99 Comp Cams 07-467-8 Xfi Hydraulic Roller Camshaft Gm Lt1 And Lt4 350ci 1995-97 Comp Cams - $344. However, I have this vortec block sitting here, dying for a build. With the vortec heads and other L31 engine Spring output is around 30% higher then stock springs which improves performance even when running a stock cam. favorite this post Chevy SB 1264 Roller Cam - $50 (Moneta, VA) hide this This cam came in the L31 engines found in trucks, vans, and probably other applications. 050 with . Another "if" is the lift the stock L31 setup will take. The exhaust valve seat inserts in the cylinder head provide superb durability. Nov 08, 2016 · If a person wanted to upgrade an L31 to the Ramjet cam and the 1. P/N 1527-400. 275 In. 4l '3400' V6 Cam Roller Camshaft. 6 ratio rockers over the LT4 hot cam on my build. 7L) cam specs are 10241264 casting number Intake lift- . GM L31 Cam Specs by jimbeamjohn88888. ALSO, 1996-2000 CHEVY L30-L31 VORTEC TRUCK ENGINES AND CHEVROLET PERFORMANCE PARTS ROLLER CAMMED SMALL BLOCK CRATE ENGINES. 2264. com/Chevrolet-Performance-12480002-SmallChevy Vortec 350 VIN R 96-02 Roller Cam and Lifters Kit (Roller Cam) 5. All Gen II camshafts are steel roller cams. No interest if paid in full within 12 months with the Amazon. Shop tons of vortec 900809108883 metal line and much more available for sale online. I'm looking for a daily driver with great low end torque. 212/218 lift . 050" lift and 0. Easy to use parts catalog. Find great deals on eBay for vortec roller cam and sbc roller cam. with 116 degree lobe separation). Read the tech article on a Budget Vortec Head Cam 355 Build, brought to you by the experts at Chevy High Performance Magazine. 45 Dana 44 and much more. I would NOT go back to a flat tappet cam. also i'm going to be running a edelbrock performer an 6oo holley on the vortec motor, headers into flowmasters. Cloyes Timing Set - Heavy Duty - Incl. $325. hopped up L31 waiting for a hot 400. they have to be within i believe 3* of each other. 495 / . For pushrod engines, roller rockers employ a roller where the rocker contacts the valve stem. 7 LT1 camshaft installed. The L31 was the last engine to come out of the first-generation of Chevy small blocks. the timing cover must be replaced we have oem gm timing covers available for 50. 495 / . intake and a milder roller Edelbrock Hydraulic Roller Lifter Kit for 1987 and Later Big-Block Chevys. › SBC 355/350 gen1 L31 long block. Chevy Gm Race Direct Oil Hp Hydraulic Roller Lifters Lt1 Lt4 L98 L31 L05. TITLE 350 HO Engine (12486041) Specifications REV 31JA10 PART NO. 08 gears, Doug Thorley Tri-Y headers, true duals Suburbans, Blazers, Tahoes » L31 Camshaft choice? (for max torque) FusionBB™ Version 2. 7 roller rockers. comAdCheck Out L31 Roller Cam on eBay. 22 Genuine Volkswagen Engine Oil Sump Nos Jetta Passat 16 19 1g 1g1 1g2 068103601l 350SS wrote: I think the power levels are a little high unless you're running bigger heads and a cam, and depends on your boost levels too. 7. Xtreme Energy™, 252XFI HR13 Excellent Torque, Good Economy with Added Power Part Number: 08-464-8 Quantity in Cart: none Learn MoreJul 29, 2013 · 1) Stock long block 5. Home › Chevrolet/GM › Small Block Gen I 305-350 '87-'98 (Roller) › Camshafts Common Usage: Mild street performance to mild race Key Benefits: Modern, aggressive roller profiles, reduced friction, low maintenance, reduced valve train noise, more power than conventional hydraulic flat tappet camshafts The camshaft is one of the most important factors in determining an engine's overall performance profile and capability. 495 if 1. 487/495 (roller lifter) Comp Magnum roller rockers. Chevy LS1 Hydraulic Roller Camshaft . 7L Part 1 LS6 Valve Springs On A SBC L31 Vortec Part 2 Of Cam Swap Author: HoneyBadgerOBSViews: 48KChevrolet Performance 350 C. 2 Gm Gmc . (I'm being sarcastic, afterall. The original $42 . Find Cloyes Timing Kit CT-C-3092 at discount prices in our extensive Chevrolet, GMC auto parts catalog. GM Vortec Engines The Vortec engines were designed for performance, fuel efficiency, durability and low maintenance. 487/495 (roller lifter) Comp Magnum roller rockers. Okay I was under the impression that the chev and gmc 1/2 ton trucks around 98 with the 5. Key Benefits: Modern, aggressive roller profiles, reduced friction, low maintenance, reduced valve train noise, more power than conventional hydraulic flat tappet camshafts. Jul 12, 2004 · You left out the LT "Hot" cam with 1. com › Chevy High-Performance › How ToRead the tech article on a Budget Vortec Head Cam 355 Build, brought to you by the experts at Chevy High Performance Magazine. 459 with 117 LSA. f. I was considering using it because I HAVE it, not buying him a cam …Apr 06, 2007 · thanks old bogie. Mar 03, 2005 · '80 GMC Vandura. dausband store FALCON MARINE ENGINE KITS This kit is for Chevrolet 350ci (5. 42 gear ratio. 96-02 Chevrolet - $289. Chevrolet 350 Buy a 1998 Chevrolet K1500 Suburban Timing Chain at discount prices. For this price you will surely spend more on the rebuild than this motor. 7 Liter; ZOOM. Cam Sprocket / Crank Sprocket / 0. The dual overhead cam L31 AFR also recommends the use of billet cam cores and short travel Hydraulic Roller lifters which tolerate higher spring loads. 428 max lift on an LSA of 111 degrees but the L31 does pick up the lift a bit compared to the 929 cam. Now this are the facts and doubts : - What's the stock '96 L31 Compression ratio? thinking on using 0. Roller Cam. 7L Part 1 LS6 Valve Springs On A SBC L31 Vortec Part 2 Of Cam Swap Increased power for your 1996 to 2000 350ci Chevy Vortec 5700 V-8 engine which included a hydraulic roller Crane Cams camshaft and valvetrain bits, along with Taylor Cable throttle body and Read Chevy High Performance magazine's technical article on modifying Chevrolet small-block Vortech cylinder heads. $241. L30/L31 intake manifold. Idling through a Magnaflow cat back, this was a cam only swap  LT4 Hot Cam Install In L31 Vortec 5. 525 lift Feb 12, 2010 · The L31 cams were kind of small from the factory, so start there. Camshaft Bushing Kit. - AJ, IN No, that's OK. 7l Ohv Timing Chain Oil Pump Kit Vin R 0. 452" lift, others apparently get more on the stock setup. com . WR450SM , Jan 14, 2009 #7 12371041 Factory Roller Cam Push Rod Kit 12550027 GM Intake Bolts Set 134-2002 ARP SBC Vortec, Intake Bolt kit. Locate 350 Roller Cam on sale right here with the biggest option of 350 Roller Cam anywhere online. These particular lifters are what were used in every SBC Factory Roller - GM Engine for 1996-1997 L99, LT1, and LT4 ENGINES. Feb 12, 2010 · The L31 cams were kind of small from the factory, so start there. Need assistance? Help me Delete my Ad or bump my ad to the top Bump Once Per Week. and would recommend buying a roller motor like a 1996 vortec truck roller motor that gives better flowing heads and a roller cam. May 25, 2012 · On top of that, most of them in that year range should be factory roller cams. Aug 23, 2008 · Hey everyone, Building the L31. That block is factory Hyd Roller. 6 roller rockers, what else would be needed besides the Ramjet rockers themselves and the Ramjet springs? Anything else different about the L31 heads? Also, how would this engine run with the use of a carb compared to the FI Ramjet engine if all else is the same. 640 Hyd Roller Cam , Brodix Heads, Pump Gas. Easy 375 horsepower engine with a good intake, carb, and exhaust. 92 LT1 with fresh rings & bearings, LT4 Heads, LT4 Intake, LT4 Hot Cam, 1. Jan 31, 2010 · Then I looked at cams again. Thread starter TayCruiser; Start date Jun 22, 2012; Forums. best way i have found to do them is hook up the tech II and look at the cam position sensor in degrees. 050 with . 040" 350ci, 4 bolt main, one piece rear, roller cam block. Chevy Gm Race Direct Oil Hp Hydraulic Roller Lifters Lt1 Lt4 L98 L31 L05 Vortec. 050 In/ex–Lift in/ex–centerline–description Quality group of l31 push and . Hydraulic Roller Piston Material: Hypereutectic Aluminum Crankshaft Material: Nodular Iron Camshaft Duration (. Recommended modifications. 487/495 (roller lifter)Having a hard time finding Vortec Cam online? Locate Vortec Cam on sale right here with the largest selection of Vortec Cam anywhere online. com//266645-sbc-lt4-hot-cam-question. htmlDec 04, 2011 · SBC LT4 Hot Cam Question. 0 roller cam in performance. Camshaft, TPIS Super L98 Hydraulic Roller Camshaft, SBC 87-92, LT1 93-94. - AJ, INAug 21, 2010 · I would like opinions on this combination. Your crate motor "roller" cam will bolt in and you can use your old rollers again,,, assuming they are in good repair. Of course, I had to change the springs too, (stock vortec springs are pretty weak, even though they were roller cam springs At least the cars did get a roller cam which helped them make the 170hp GM claimed they would make but the trucks don’t even come close. The stock Vortec L31 roller cam was a HUGE improvement compared to the flat tappet stock TBI camshaft! The 1990 K2500 the engine was installed in, is mostly used for towing. What I really know is the flat-tappet cams for the SBCs. Tuned L31 Vortec with TBI Heads / Intake If this is your first visit, be sure to check out the FAQ by clicking Nov 08, 2016 · If a person wanted to upgrade an L31 to the Ramjet cam and the 1. 447/. 525-inch for both the intake and exhaust. Last edited by Lennox60; 12-03-2011 at Aug 21, 2010 · 350 built for torque Buy L31 vortec head long block. 7 L31 Vortec With Lifter Noise ext. 1 Vortec 2005 Engine . AutohausAZ offers a large selection of Cloyes parts online. When The Feb 08, 2012 · 350 roller block hunting--tips needed. Blueprint Mbp3550ctc - $5,555. 431/. Enginequest Camshaft Thrust Plate Chevy 305 350 Roller Cam 4. Hylift Hydraulic Roller Lifters Set/16 For Chevy 350 5. 5 compression sporting the best heads GM ever produced on a gen 1 sb. They all have the notched camnose with three-bolt cam gear mounting on a smaller-diameter bolt pattern than earlier small-block cams. Hydraulic Roller Camshaft; Small Block Chevy; HT383/Ramjet 350 Cam; Lift: . 6 rockers you can expect even more. Vin R is a Vortec engine where Vin K is a TBI engine. Or 3pc. 28. Pitch Single Roller Chain - . @ . Blueprint Marine 350 Dressed Roller Cam Vortec Heads 365hp Mll-mbp3550ctc. i. If it has a non-roller cam shaft (L31 Vortec, 96 - 00 has a roller cam shaft), then the engine should be run for 20 minutes above 2000 RPM for the lifters to break in properly. a forged steel crankshaft, a smooth hydraulic roller camshaft and a set of iron Vortec heads. Roller is the way to go GM Engines 12530283 - Vortec HD 350 L31 New Crate Engine Free Shipping on Your Genuine GM engine from SDPC! I ran a flat tappet motor with a blower and it couldn't even come close to the 5. The right length engine pushrods for 5. 464 lift, does anyone have a more definitive spec for he stock vortec heads? Jump to content Gen I & II Chevy V8 Tech Board No matter what you're driving, we have the right 350 Roller Cam for your automobile. Roller Lifter Install Kit for '87-'90 Blocks or '91-'02 Blocks can be purchased. the castiron Vortee (L31) head, and GM's new Fast Bum aluminum head. This camshaft is a great upgrade for 1996-2000 Chevy/GMC trucks equipped with the L31 Vortec Ok im building an l31 350 looking for some suggestions on performance parts, like the cam, valve springs rocker arms and etc. 4:1. 6 roller rockers, Ed Wright (FastChips. 7 350 355 build HP and Torque? but am well on the way to putting together a roller cam 350 as shown: If you're using GM L31 Vortec heads, the chambers are likely a Updated to be based on Lunati's new camshaft profiles. 224 lift . I was thinking, xe274 in the vortec block, for now, until I save up enough coin for a roller cam. $382. Camshaft Bearing. The intake and exhaust ports are very similar to the 1992-1995 Corvette 350 LT1 heads Engines w/o balance shaft. In order for the Cam Shaft to push down on the Rocker Arm is must be located in the middle of the rocker arm. '80 GMC Vandura. 30 shipping Chevy Marine 5. 515, use 1. favorite this post Chevy SB 1264 Roller Cam - $50 (Moneta, VA) hide this Blueprint Marine 350 Dressed Roller Cam Vortec Heads 365hp Mll-mbp3550ctc. Speed-Pro Performance camshaft and lifers with double roller Blueprint Marine 350 Dressed Roller Cam Vortec Heads 365hp Mll-mbp3550ctc. 428" Intake duration @. 451 E) has the Vortech heads p/n 12558060, with 64 cc chambers, hypereutectic pistons - 9. Weiand Chevy Small Block Vortec L31 Fastburn Long 6-rib Belt Universal Polished. 050" lift and 0. do NOT contact me with unsolicited services or offersExcellent cam. 10. if you want to run it hard, and have it last a long time, and pick up a little more ponies, consider doing a roller upgrade. 5This kit includes the following items: One camshaft P/N 809-24502586 16 roller rocker arms kit P/N 809-19210729 16 valve springs P/N 809-12551483 16 valve caps P/N 809-10212808 16 valve keys P/N 809-24503856 16 valve spring shims P/N 809-10212809 Note: This kit does not include roller tappets Feb 08, 2012 · 350 roller block hunting--tips needed. With the upgrade go ahead and get a 98 or later L31 Vortec Block that came with a roller cam set up originally. 525 / . Suitable for most hyd roller cams w/ up to 244 degrees duration @ . 7 Vortec) then it will already be a roller cam engine. 1999 Chevrolet W3500 Tiltmaster Timing Chain Cam Plug. I four bolt main cap block with one piece rear seal, forged crank, PM rods, hypereutectic pistons, 9. even though they were roller cam springs) so that was another Could a moderator please make this a sticky. 1 L31 cam specs: Author Message; Speeder. LT4 has smaller but stronger steel roller chain. LT1 cams are driven via a link- belt timing chain with conventional gears, while the LT4 uses a roller-style timing chain. Originally, the stock #906 casting head was available in two versions. From Crankshaft Coalition Wiki So if you're building on a Vortec block from 1995 or later it is at least provisioned for a roller cam if Location: Main Index » Forum Index » Trucks-Vans-SUV » 88-98 Fullsize Trucks, Vans, Suburbans, Blazers, Tahoes » L31 Camshaft choice? (for max torque) (for max torque) FusionBB™ Version 2. 3 with stock cam, truck intake, truck exhaust manifolds Trying to decide if I should do an LM7 5. Gotta be the self-aligning variety, and on my heads with a . 7 cam and 5. BluePrint Engines builds Chevy and GM crate engines. One scenario would be to pep up a small cam (like the stock L31, putting 1. best-deal. You can reuse the stock roller lifter which is …Aug 03, 2017 · I have 350 chevy, I would love to add some power with a camshaft, checking the casting numbers I found : 10243880 for the block (not roller) 12558062 for the cyl heads According to some lectures, that block is used for an L31 vortec engine, and the …Sep 25, 2013 · camshaft for marine vortec 350. chevy 350 96-2000 comp engine 96-2000. com > General Technical Discussions > Engines & Drivetrain > SBC 350 L31 Cam Selection a 4/7 swap in a hyd/roller to justify another run of cam cores. It's now called the LT4 Hot cam. The reason I mention this is I went through the same thing you are talking about. 15. What cam might work best in an otherwise stock truck? the L30/L31 are SBC with vortec heads and E36 M3ty fuel injection. Of course, I had to change the springs too, (stock vortec springs are pretty weak, even though they were roller cam springs chevy 350 96-2000 comp engine 96-2000. 4-1 CR, Vortec "L31" cast iron heads, and hydraulic roller cam with