3: Many OEM EFI systems cannot be tuned to run well with certain cams. Has anyone used the Engine Tech brand L-79 camshaft in their engine? https://www.ebay.com/itm/CHEVY-SBC-...AMSHAFT-L-79-327-GM-OEM-3863151-/162595869407, (You must log in or sign up to reply here. Nostalgia Plus™ Cams are designed to mimic the sound of the great engines of the past while improving performance by applying today’s design techniques. Please Call, Email, Twitter or Live Chat for details. Most '87 - '93 GM cars came with roller lifters, but most '87 - '95 trucks came with flat tappet lifters in roller lifter style blocks. In Corvette: Technically Speaking, the 68 cam is shown as two different values. While the 30-30 cam does use recommended lash settings upward of .030-inch for both intake and exhaust, the Duntov camshaft uses a much tighter recommended lash of 0.012-inch and 0.018-inch for intake and exhaust. It lasted 30 minutes and only took out one lobe. JavaScript seems to be disabled in your browser. The 30-30 cam is a solid lifter performance camshaft, but is an entirely different camshaft altogether from the “097” Duntov cam. To take a look at what set the L79 apart from the rest, Speed Secrets’ Richard Holdener teamed with Comp Cams to build a reproduction L79. Someone owns it. COMP Performance Group will be in attendance at many of the largest races & car shows across the country. Chevy has released some more specifications on their cams with the .050" lift that is standard in the cam industry. They came with a tube of spooge as well. Rings of being from Shanghai. Need help finding what you are looking for? Any value in a brace [ ] is a value that is also shown in another document. The 65-67 L79 350 hp cam and the 68 L79 350 hp cam are shown the same in some documents and different in others. Roller Lifter Install Kit for '87-'90 Blocks or '91-'02 Blocks can be purchased, as well as a '87+ OE-Style Hyd. I was going to use the rams horn manifolds. Never heard of Bullet Cams. As such, they may be inaccurate due to lobe ramps ground non-symetrically. 17 minutes of run time on this Enginetech cam from the rock. One of The Sealed Power lifters from Rock had .060"worn off the bottom of it and yes I used the correct cam lube and a zinc rich oil additive. Horsepower rating, '64-65 327 mech L-84 p/n 3849346 c/n 3849347, LT4 Corvette Hyd. I just buy the best parts available, have some Howards cam kits saved on eBay. ). Roller cam conversion in pre-'87 blocks requires Retro-Fit Hyd. These are not advertised values. I'll go roller with my big block build. Privacy Policy. All lobe centers and distance between lobe centers are calculated. My advice would be whatever cam you choose, use the BEST LIFTERS you can get. Denny, are you running headers or manifolds on your L-79? You need to be very conservative when breaking in a new FT cam. For the best experience on our site, be sure to turn on Javascript in your browser. If a roller cam is desired and your block has OEM-style roller cam provisions. Year, CID, Type, Part No. Replaced it with a sealed Power cam from Rock. COMP Hyd. Sound & character of the ever popular GM L79 cam w/ modern power. To compare the two cams side by side there was no visible differences at all. 4. Any thoughts? Roller Cam and '87+ OE-Style Roller Lifters. Capture the essence of the factory muscle cars of the '60s & '70s. 3. Copyright © 1995-2020 The Jalopy Journal: Steal our stuff, we'll kick your teeth in. So I went up to GM and asked them for the specs on the L79 cam, they came back and said 320 duration at the lash point!!! Compiled from Corvette: Technically Speaking, Chevrolet Power Manual, How to Hot Rod Small Block Chevys, How to Hot Rod Big Block Chevys, various Chevrolet literature, and personal measurements and calculations. ok I got to thinkin Im supposed to build an L79 for this guys 66 nova. The 65-67 L79 350 hp cam and the 68 L79 350 hp cam are shown the same in some documents and different in others. Just remember, this is the published information from the times and not all is accurate. All hp ratings are Gross. Small Block Chevrolet Factory Cam Specs by part number Part # • Lifter type • duration at .050 In/ex--Lift in/ex • centerline • description • Small Blocks 3849346 Mechanical - 254/254 - .484/.484 - 114 - 327 365HP& Z-28 302 The 68 cam shown may actually be a non-Corvette item. 3406 Democrat RoadMemphis, Tennessee 38118. We are going to use Vortec heads modified for more lift and I wanted to use an L-79 cam. Roller Cam and Retro-Fit Link Bar Lifters. These are at zero lash, zero lift unless preceded by @.008". COMP Cams 12-671-4 - COMP Cams Nostalgia Plus Camshafts Camshaft, Hydraulic Flat Tappet, Advertised Duration 276/283, Lift .468/.462, Chevy, Small Block, Each Part Number: CCA-12-671-4 For Hydraulic Flat Tappet Lifters; Fits '58-'021 262-400 cid Chevy Small Blocks2, Sound & character of the ever popular GM L79 cam w/ modern power. How can that be, that thing wouldnt come around till like 4500. Yes, Duke Williams says this is garbage. The Rock has this cam in their Engine Tech brand for $48.79, P/N ES179R. I think i'll stick with Comp Cams. In Corvette: Technically Speaking, the 68 cam is shown as two different values. I have never lost a flat-tappet cam over the years, but may have only did 30 or 40 of them. Any value in parenthesis ( ) is calculated. Some of this could be due to Chevrolet's changing of their numbering system through the years as part numbers are updated frequently. The 68 cam shown may actually be a non-Corvette item. These cams use lobe profiles that are slightly less agressive than Xtreme Energy™ profiles but have excellent area under the curve for outstanding power. All numbers are degrees unless a decimal and ending in ". I'd call Comp Cams and ask for their equivalent of the L79. Roller "Hot Cam" p/n 24502586, 65-71 High Perf Mech 396 - 454 p/n 3863143 (c/n 3863144), L88 Mech. Don't forget the valve springs as well. Two part numbers are listed and so there may actually be two cams. Roller Lifter Install Kit for, Chevrolet 262-400 c.i. Has anyone used the Engine Tech brand L-79 camshaft in their engine? In plain, simple language, don't copy any of this. Nostalgia Plus™ Cams are designed to mimic the sound of the great engines of the past while improving performance by applying today’s design techniques. With 4 … For Hydraulic Flat Tappet Lifters; Fits '58-'02 1 262-400 cid Chevy Small Blocks 2. Same as L88 p/n 3925535. Copyright � 1996 - 2004 Procrastination Racing, VetteNet, and all authors as listed. 5. Most '87 - '93 GM cars came with roller lifters, but most '87 - '95 trucks came with flat tappet lifters in roller lifter style blocks. Love my 327 with a XE262H. Skip to the beginning of the images gallery, Nostalgia Plus 229/236 Hydraulic Flat Cam for Chevrolet Small Block, 2: The '87+ Chevy Small Block received provisions for roller lifters. Due to several "mistakes" shown, please refer to all notes at the end of the table. Where shown, part numbers are p/n xxxxxxx and casting numbers are (c/n xxxxxxx). Two part numbers are listed and so there may actually be two cams. When in doubt, both specifications are printed. 4. But then, Duke hasn't given changes to make this right or put up one with the right information, so this is the best you have. Local shop used to sell Wolverine cams and they were like $29.95 at the time. Some discrepancies exist such as the L72 427 cam. Have it narrowed down to a few grinds. 1: Cams for '55-'57 engines can be custom ordered. COMP Hyd. Differences may be due to removing the lash. My son and I are building a 350 for installation into his 1963 IH C1100 pickup truck. 5. Thanks for your time, the H.A.M.B. My son and I are building a 350 for installation into his 1963 IH C1100 pickup truck. Use of this material is protected by the copyright laws of the United States of America. Their latest specs do not match completely with previous specs, so I do not know if they are different cams or if their means of measuring was that far off. 8 Cylinder (1958-1998), WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov. The specs of the muscle car era engine were pretty standard across the board, but GMs L79 had a legendary reputation. Anything can go wrong with a build despite all the best precautions taken. Any thoughts? 2. ROCKS! Most early specs included more up ramp than down ramp and this leads to a non-symmetric profile and throws the calculated centers off. Before installing in an OEM EFI engine be sure to check with a competent tuner. p/n 3925535 or 3928911 (c/n 3925536), '67 427 Gear Drive p/n 3925533 (c/n 3925534) Degree and minute numbers are shown as DEG:min such as 32:30 is 32 deg 30 min. If mechanical, deduct lash from lift to get actual lift at Valve unless marked as @ .015". The Rock has this cam in their Engine Tech brand for $48.79, P/N ES179R. For the best experience on our site, be sure to turn on Javascript in your browser. 1. Other discrepancies are in part numbers, some documents showing one, others another number. Discussion in 'Traditional Hot Rods' started by Truckdoctor Andy, Aug 9, 2018. 2: The '87+ Chevy Small Block received provisions for roller lifters.

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