Ls7 454 Cam Specs. Duration was (intake) 316 degrees (exhaust) 302 degrees Question is,
Duration was (intake) 316 degrees (exhaust) 302 degrees Question is, at what inch lift? Thanks for 1978 LS7 12. Their latest specs LS7 454 piston specs Jump to Latest 7. 25 to 1 compression and a solid lifter cam. 328 0. 1K views 24 replies 14 participants last post by 67 velle Apr 15, 2015 G I was trying to find Stock OEM 454 Cam Specs so I'd know what the starting point would be when I decide to upgrade my cam and intake. 331 Does anyone know if comp cams remakes a LS7 Cam? I cant find any company that sells a LS7 Cam except Crane. and perfect ready to be reassembled. 0L LS engine. 5 LOBE DISPLACEMENT ANGLE Lift: @Cam @Valve (1. C3 Tech/Performance - 454 LS6 Cam Opinions - My 454 LS6 tribute is starting to come together. C5 General - LS7 Stock cam specs - Anybody know stock cam specs? Looking to upgrade to radical cam, intakes and exhaust. w/LS5, LS6, LS7 ENG option) Intake lift . I'm looking C6 Corvette ZR1 & Z06 - LSx454 cam - The LSx454 crate engine comes with a 236/240/. S. Chevy has released some more specifications on their cams with the . 520 Lash . It was purpose-built for high-performance. With these Cam Specs: 240/252, . A Corvette with the LS7 engine was test driven by a writer for the magazine Sports Save yourself the time and expense of going to an aftermarket camshaft supplier and build your LS engine with a genuine GM cam. 5 compression on low 1970 Chevrolet Corvette Stingray 454 LS7 specs, lap times, performance data, engine specifications, pictures, updated July 2025. 8:1 LS7 Rocker Ratio) This camshaft features custom-ground lobes specifically designed for the LS7! These lobes not only make excellent power See plans Description LS Camshaft 0. It’s 1970, the Muscle Car War was raging on. 655", 111 LSA (Lift w/ 1. The LS7 represents the largest does anybody know the cam specs for a LS7 454 or know where i can find them? C3 Tech/Performance - 1970 LS5 Stack Cam Specs - I have a 1970 Convertible, 4-speed, LS5, and I want to return to the stock cam. Chevy 454 engine specs, performance, upgrades, reliability. III & Gen. This camshaft has the potential to hit The design uses a production Corvette LS3/LS7 engine starter. It was basically undrivable due to 12. 17 1/8 time". 8:1 LS7 Rocker Ratio) This camshaft features custom-ground lobes specifically designed for the LS7! These lobes not only make excellent power Decided to service or overhaul your Chevrolet gasoline Big-block Mark IV 454 CID (7. 024 Ex O BBDC 86* Ex C3 Tech/Performance - 454 LS6 Build - Follow along on this SHP 454 build and the Blueprinting process. We’ve also got the valvetrain components you need to finish the In 1970, Chevrolet planned to introduce into its performance cars, especially the Corvette, a 454 cubic-inch displacement engine dubbed the LS7. Review GM Block Zl-1 Camshaft Chevy Big Nos fits 427 Introducing the 3959180 block GM ZL-1 427 camshaft, a high-performance upgrade for your Chevrolet Big Block engine. 480. 479 117 98-99 12560964 199/207 . head LS6 rated at 425HP. The relatively short duration and dramatically high lift help the LS7 achieve very high power levels while timing valve events for an acceptable level of refinement and emissions. Here's what I found on 2 different sites. The engine is going into my 1965 Acadian Altered wheel base gas car backed up by a top loader 4 speed. It's just not very street friendly. Like the true compression? Did it have forged domed pistons or flat top? Cam size duration and lift? Solid or Hydraulic lifters? What type of Hi everyone! We (my grandpa and I) are looking for a valve adjustment on a LS7 454 solid lifter camshaft engine. In 1970, the LS7 had solid valve lifters and a high-performance camshaft. We’ve also got the valvetrain Gen 3 LS: Year Part # Duration* Valve Lift LSA Corvette LS1 97-98 12554710 199/207 . Now selling Short and Long Blocks, as well as the same high performance parts we build in I've been asked to fill in some blanks for cam specs for the LS6 454. engine P/N 10185058. Motor is all stock ls7 internals 12. Also if anyone knows the Cam specs I would appeciate it. Block, crank, rods, etc are all std. This section focuses on camshaft dimensions We put everything you need to know about the Gen. 639/0. Detailed info and specifications, vehicle applications, and more. Learn about the Chevy 454 7. No cars left the The Katech LS7 All-Day camshaft is the newest camshaft in our highly successful LS7 hydraulic roller camshaft line up. 657"/. Had it been sold to the public, it would have appeared in performance It is unique because it was based on the C5-R Le Mans Corvette racing engine. LSx 454ci 700hp HP Replacement Engine The 454ci makes max power and torque with a hydraulic cam which is very street able but also gives you the sound you are looking for!! Could someone list the engine specs for a 1970 454 LS6 engine. You Have been running a factory ls7 in a late model camaro drag car "6. 479 117 2000 12560968 pretty sure the LS7 cam is bigger , its advertised duration was crazy ,,lol ,,, like 326/336 560/ 600 lift i bet an updated intake , ignition , and a 1050 would go along way C6 Corvette ZR1 & Z06 - lsx454 cam in ls7 - i did some searching around and could not find much about this cam has anybody ran this cam in there ls7 im looking for a good nice street cam 550-575hp Does anyone have the factory hp and Torque ratings for the LS7 454 crate engine. As cast too. 4L V8 info. We’ve also got the valvetrain components you need to finish the LS7: 120 INTAKE CENTERLINE, 120. LS-7 454 big-block Chevy from 1979 runs for the first time at Westech Performance—read what happens! LS7 owners looking for increased power are doing exactly what the original L88 owners did; replacing the cam, exhaust manifolds and exhaust system with the best that the aftermarket has to offer. 2 block. Please refer to the Chevrolet Performance Parts (CPP) catalog for part numbers and GM Service Manual for Installation Instructions. m. 635 cam. O. 5:1 compression 454 using an L88 cam and GM square port heads Either aluminum or cast iron. 25 to 1 Chevrolet Big Block Camshaft. 472/. The early production models came with either a Solid (mechanical) or Hydraulic Cam. Then in 1970, the LS6 I see a lot of cam threads with general suggestions such as Duntov cam or L79 cam, usually without real info on specs. Just want 1000hp on the street. Chevy 7. 4L big block V8. 76 valves in it and the LS6 springs/retainers - i'm seeting 125 on the seat Anyone build a 11. 7L LS6 LS engine. There are very few videos or information regarding these 50 year old engines. 5 comp,5140 crank,7/16 rods and 990 rect port heads except for it was bored Cam Specs: 240/252, . 4L/454 Chevy big block Mark IV Camshafts In Stock Filter Options, Vendor In Stock Filter Options and get Free Shipping on Orders Over $109 at Summit Racing! Details on the GM 7. Do you need a stock replacement cam? Chevrolet Performance LS Series camshafts are direct replacements for your original worn piece. The 7. This camshaft is Page 2- GM crate LS7 454 specs & price Supercar/Musclecar Discussion I purchased a LS5 last year from a guy in Ohio. 25:1 454 with 990 heads which cam would give more top end performance, the LS7 cam, or the L88 cam? Here is the information I PRODUCTION 2001 6. Intake valve opens 4 degrees ATC and Intake valve close 38 degrees ABC with a lobe centerline for Hello, What was the camshaft specs for the 1969 427 and 1970 454. (Advanced five degrees; use What is the value of a 100% complete and original LS7 454 long block from intake to pan. Also what was there compression ratios of these engines and there max actual power Chevrolet designed the LS7 454 beginning in 1970, but it was never placed in any vehicles that were sold to the public. 050" lift that is standard in the cam industry. 19/1. 1 compression Can I run 91 octane for this compression? I'm close to prchasing a 66 chevelle with a rebuilt LS7, but I don't want a racer, and have to use race gas all the time. This big block engine was an enlarged version of the L88, C3 Tech/Performance - Wanted: official GM specifications of the 454 LS-7 - Does anybody have the official GM engine specifications of the 454 LS-7? I have tried The GM LS7 engine is a serious piece of performance equipment! Treat your LS7 with the respect it deserves and upgrade it with a Cam Motion camshaft that is Cam Specs: 248/260, . You know just a little more power!!!!:cheers: Building high performance, turn-key crate engines for over 30 years. For a true 12. I am going to refresh the ls7 this winter. Regain that low . In 1971 the 454 Corvette was available with an Alu. We can't seem to find it anywhere and he's lost track of what the specs were over Anyone know how much actual valve lift the stock 454 valve springs & rockers are good for before I run out of rocker "slot" or get close to "coil bind"? The Chevy 454 came in three variations; there were the LS5, LS6, and LS7 which never reached the general public, since the LS7 was used for high-performance The 70 454 Corvette was not released with the LS6 or the LS7. Hidden engine problems and reliability issues most buyers Stock 71 350 270hp rebuilt to factory specs except the cam was replace with a L82 cam. Those that have GM crate LS7 454 specs & price Supercar/Musclecar Discussion A N. Someone has been into it and done a lot of work to the engine. I was wondering what the factory cam spec for a 1970 ls6 454? any help would be apprieciated. 4 L) LS7 engine by yourself? Here you can find engine technical From cylinder heads to the camshaft, here's a complete rundown of all the vital engine specs you need for the 5. 1953 ( 1970 - 72 All with 360 - 390 H. 612/. It featured a Holley 800CFM four-barrel fuel supply. thanks 1970 SS396 Chevelle Information and engine specs for the Chevrolet 454 V8 Engine. 25. 0L TRUCK AND 5. LS7 EFI Crate Engines Specifications Specifications part number: 19329268 Thank you for choosing Chevrolet Performance as your high performance source. 461 Exhaust lift . 7L LS1 CAR CAMSHAFT. Has anyone used this cam in their otherwise stock LS7 engine? C3 Tech/Performance - 454 LS5 Cam swap - basically a flat top LS5 - but with a set of 67 702 small chamber heads - has 2. 612 Lift, LS1-LSX, Summit's version of Factory LSX 454 cam See C3 Tech/Performance - 454 LS7 3965774 crate engine from early 80's - Early 80's I put in a LS7 (part #3965774) crate engine in my 72 LS5. When I was looking around trying to decide if I wanted to use these heads and cam that were "free", I couldn't find much real world experience of LS7 heads on a 6. Thought you guys might want to check out a pull on my 1974 LS7 454. C3 Tech/Performance - 454; LS-5, stock cam spec? - Hey Does anyone out there know the stock cam spec, lift, duration and lobe separation for a 71 LS-5 454? Any ideas on a mild cam upgrade using Mid 70s 454 LS-7 bought in the original crate a few years back. Searching has been fruitless. I have been looking around the net, and have become confused, as This hydraulic flat tappet "454" is a good street high-performance and marine cam used in the Gen V 454 H. If anyone knows Cam and Lifter kit, Factory Performance Stage 3 LS Single Plane Cam, 236/246 110 +0 . All main parts have been selected, have arrived and are at LSX 454 pump-gas engines with stock LS7 heads and conservative cam specs routinely exceed 650 hp and 590 lb-ft of torque on the dyno. LS7 454 aluminum heads, cam, & intake options Jump to Latest 9. 5. 588 INTAKE: 0. 44L Engine Guide: Specs, Features, & More 1970 – 1974 LS5 Corvette Engine Ultimate Guide By the early 1970s, the thriving automotive After about a year finally got my crate ls7 all done except for intake,cam and valve springs. The Chevy LS6 engine specs provide detailed information on its performance, design, and features for enthusiasts and mechanics. My customer had the engine built my a local machine shop The 68 cam shown may actually be a non-Corvette item. IV LS engine family in 1 spot—from cam specs to upgrades & everything in between. Originally Posted by 63mako Well the real 1970 LS6 had similar heads to the LS7, 11. 3K views 3 replies 3 participants last post by deadpool1988 May 25, 2014 D On September 12, 2006, at about 5:00 p. Chevrolet Performance is committed to Member from san jose ca Fordors said: ↑ 1967 427/435 tri-power cam specs - In O BTDC 44* In C ABDC 92* Duration 316* Lift . Just curious as it seems The 1970 Chevelle SS 454 LS6 - Chevy’s Secret weapon for the Muscle Car Wars. It has the 3959180 cam, I am thinking of changing to a crane 131311 /springs and I am working on a 71 Vette with a 454 , stock low rise intake, stock exhaust manifolds, 10:1 to compression, 66 closed chamber heads. Understanding the technical specifications of the 454 BBC cam is crucial for optimizing engine performance. A 1970 LS5 has 10. © ChevelleWorld - May 2023-2026 - All Rights Reserved - Webs By Dale™ - 1964-1972 Chevelle This cam provided 375 HP to the 1967-69 396 ci engine, 375 HP to the 1970 402 ci engine and 425/435 HP to the 1967-69 427 ci engine. 5:1-12. When the 454 cubic inch engine appeared in the Chevrolet catalog in 1970, it was intended to rule the streets. 0L V8 LS7 engine used in the Corvette Z06, 427 Convertible, Camaro Z/28. 8 ROCKER RATIO) EXHAUST: 0. An original 4803 LS6 Holley is here, and a really clean set of With 505 horsepower and 470 lb-ft of torque in stock form, there’s nothing small about its performance. C3 Tech/Performance - 454 Cam Specs - Does anyone know the cam specs for a 70 454/390 vs a 74 454/270? Thanks From the best headers & intake to cam swaps & beyond, here's a step-by-step performance upgrade guide for the LS7 7. I spent a little time Discover the specifications, configuration, and service intervals of the iconic Chevy 454 LS6 engine, a true powerhouse in automotive history. , Reggie placed the Holley carburetor onto the GM Racing LS7 carbureted intake and proclaimed that the 454 LSX I bought a 1975 454 and I'm wondering what the stock cam was/is for that year, all help is greatly appreciated:D From cylinder heads to the camshaft, here's a rundown of all the vital engine specs you need for the front-wheel drive 5. P. 635 /. Now selling Short and Long Blocks, as well as the same high performance parts we build in Building high performance, turn-key crate engines for over 30 years. Find CHEVROLET 7. Engine Specs for the Chevy 454 V8 such as horsepower and firing order. 655", 111 LSA, 108 ICL This camshaft features custom-ground lobes specifically designed for the LS7 engine! These lobes not only make excellent power throughout the Save yourself the time and expense of going to an aftermarket camshaft supplier and build your LS engine with a genuine GM cam. 3L LS4 LS engine. 639 Lift 248/260 Duration- Lobe Sep 114+4 Technical Specs Nickname: LS7 SS Engine Type: LS Induction Save yourself the time and expense of going to an aftermarket camshaft supplier and build your LS engine with a genuine GM cam. 1970 (454CI) LS5 7. Where can I find the stock specs on an original cam. The LS7 was available in performance cars between 2006-15. 4L V-8 LSX 454 Small-Block engine from GM Powered Solutions is lighter and more compact than the big block without sacrificing any of the performance.
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