1968 l88 cam specs Not many, mind you, with only 20 so-equipped in 1967, 80 in 1968, and 118 in 1969. You'll get a cam that has the L88 sound and performance with the added advantage of smooth, modern lobe profiles that will work way better than 50 year old Apr 1, 2021 · 1968 Corvette Specifications. Once considered radical, now considered to be a pretty low lift cam, (. Rick Cole Auctions/Ron Kimball. 5 compression and a cam idles, here's he answer. Sep 28, 2009 · in my new L88 engine build -still at the shop now- I decided for the Comp cam nostalgia ZL1. If you like shifting at 6500 to 7000 rpm and plan on racing it, then that is the car for you. 5 (Was Lowered to 12. Used in only 216 specially made L88 Corvettes from 1966 to 1969, it is also one of the rarest Chevy Big Block 427 out there. This was due to the friction associated with the flexing of the aluminum, despite Jul 15, 2012 · C3 Tech/Performance - Detailed 1969 427/390hp engine specs? - I am new to the forum and have a 1969 ISO Grifo 7L with the 427/390hp engine (LM suffix). That makes a grand total of just 218 L88-equipped Corvettes floating around. ) Max Torque = 450 @ 4000 rpm; Stroke = 3. Jan 16, 2023 · I don't have the exact specs of the 1st design L88 cam, but the 2nd design L88/ZL1 cam specs out as follows:. 234 Jan 10, 2024 · What Is an L88 Engine? The L88 engine was GM's high-performance, race-bred 427 big-block offering for 1967. Jun 15, 2006 · 11:1 comp and aprox 242/242 dur @.   This is a new GM part that is still with an original GM parts tube, It is stamped with the 5535 on the rear of the camshaft. And the difference between the 67-68 L-88 and the 2nd design 69 L-88? Thanks Kristoffer Sep 29, 2003 · C3 Tech/Performance - 1969 L-88 cam specs - I know the 69 L-88 cam was a solid style but anybody know what the specs where? Duration and lift and max rpm. 31 over. 5:1. The ’68 vette underwent a complete body redesign, shifting towards that almost convertible feel with removable T-tops and a removable back window. Duration is long, however. Mar 3, 2004 · I just finished an L88 for my 67 Camaro. the engine was mean & sounded wicked running thru flow masters. The L88 was listed by Chevy as being less powerful than the L72 to throw buyers off of the L88’s scent. and aluminum heads. My engine is an original 396/325 hp bored . Feb 24, 2023 · Available in the L88 Chevy Corvette only between 1966-1969. Only 20 were produced in 1967. 88/4. Jan 8, 2002 · I'm running the factory L88 cam. Engine is 350 bored 040 over KB pistons w/valve relief one side. ) This is to answer the streetability question about the compression. For the new camshaft, Gary consulted with Chic and then with Comp Cams, landing on one of its Xtreme Energy series hydraulic roller grinds; it was then paired with Crower roller rockers. 554-inch Aug 27, 2024 · The L88 is a 427c. Jul 1, 2002 · After the AHRA record was set, KO-MOTION's L88 engine received Crane-prepped Second Design open-chamber aluminum heads, Phase III . Both cams have a light blue paint splash, as well. Body: two-door coupe, steel Engine: 427 ci V8 Chevrolet L88 ‘Rat’ engine, iron block with alloy LS1 heads, aluminium intake manifold with 850cfm double-pumper Holley carburettor Power/torque: 620hp (463kW) at 6000rpm/880Nm Transmission: Super T10 four-speed manual Wheels: US Racing magnesium Oct 14, 2016 · The L88 was designed as a racing powerplant, with a serious 12. The L89 option was the L71 engine fitted with aluminum heads, ostensibly developed for the L88 race engine. Apr 21, 2024 · Correct heads for a 1969 L88 would be open chamber 3946074 and the block would be 3963512 fwiw. P. The biggest and baddest Corvette of them all was the L88 built from 1967 to 1969. Sep 23, 2018 · He also revised the factory aluminum intake by cutting down the plenum divider, essentially turning the 427/425hp piece into an L88 design. … Dec 10, 2021 · Summit Racing offers three choices for Muscle Car cams for the big block Chevy, with the most aggressive being the recreation of the L-88 grind that can push valve lift up over 0. . While not adding to the engine’s Horsepower, the 75 lbs in weight reduction at the nose of the car, added to the Corvette’s handling prowess. I recently picked up another one of these cams, but on the end is the GM part number, 3959180, instead of 9181. Dec 18, 2023 · To ensure that the L88 became the most powerful production V8 ever fitted into a sports car until that point, the engineers equipped it with a full-blown, race-spec mechanical flat-tappet camshaft . You can use the Corvette C3 Decoder to decode other Corvette 1968 codes and view Corvette 1968 charts on the Corvette C3 chart article. A 1968 L88 would be a 3935439 block and closed chamber 3919842 heads. 05,. Dec 30, 2024 · Click HERE for the 1968 Corvette AMA Specifications Sheets. I went to a local performance part shop and was told that the running range of the L88 cam is around 4800-7200 rpm. about same specs of the L88 cam but faster ramps and tighter lash. Thanks! Apr 10, 2020 · crane replacement blueprinted cams. All options are listed, including prices and quantities shipped. 500/. S. You have the same 1-5 overall gearing I do. 82 overdrive. View Photos. It 1. 06/Rocker Arm Ratio) Cam Lift Opens Closes Duration Cam Lift Gross Valve Lift Center Line C/L Rocker Arm Ratio Valve Lash Clearance EXH. It is an L48 350 and I am looking for a camshaft. Apr 30, 2008 · Does someone has the complete build (parts) specs for the 427 L88 engine. 80 with the Jul 10, 2019 · These were race engines, pure and simple. Normally installed with overlap split at 4 Mar 17, 2006 · hi; i had a 427 with the L88 cam+zl-1/L88 pistons, set of 049 oval port heads with the chamber clearanced for the large domes on these pistons. EO BBDC 106°, EC ° ATDC 73° (@. If you own an iconic muscle car from the sixties or seventies and are looking for a cam from that era, a Blueprint cam might just be what you’re looking for. Feb 13, 2021 · No list of formidable Corvette engines would be complete without including the 1967 L88. The cam really does come on at about 3000 rpm. Mar 14, 2009 · Now that I have found the problem, I am in need of a new CAM. ) Max Brake Horsepower = 430 @ 5800 rpm (Some argue that it actually produced up to 600hp. Apr 28, 2016 · C3 General - 1978 L48 350 camshaft - I am rebuilding my 1978 corvette pace car engine. For the engine rebuild I am looking for detailed part#/ tech specs for - the original camshaft - the 7029215 Quadrajet I am also looking for pictures of the engines, Sep 11, 2013 · Crane Cams knows the muscle car industry, in fact, they’ve been around since the early 50’s providing great quality and horsepower numbers to match. 475 106 . on 350/350 GM style cam - First encountered this cam on a 1969 Corvette 350 ci with 350 HP. 54in, . Remember that mechanical lifter cams must subtract the lash from the gross valve lift listed in the specs. 1967 - 1969 with 4 Barrel Carb (L88) (Very rare engine that was offered in Corvettes. Need to know what the spec's for that cam is and how it might compare with other cams now out there. but needs special Crower lifters:with a hole on the lifter face I'm curious to see the difference in respect to my former engine which has the original L88 cam and lifters instead Nov 1, 2010 · The 435 is higher compression and solid lifters, 4 bolt main. Apr 9, 2002 · Bear in mind that Chevrolet's published specs for the BB mechanical lifter cams are taken at small, but UNSPECIFIED value of lift above the base circle, so the published specs include a lot of the clearance ramps and actual seat to seat duration is a mystery until someone takes and accurate lift-crank angle diagram or has a cam analysed on a Cam Doctor. I have a pretty good Corvette L88 Option Package. Dec 31, 2009 · C3 Tech/Performance - Spec. He acquired new Chevrolets from Baldwin Chevrolet in Baldwin, NY, to modify into the fastest street cars of the 1960s. Late in 1968 Zeigler sold the L88 to a Pittsburgh resident and it remained in the 1968→1969 Chevrolet Corvette Stingray L88 Coupe. The 1968 examples accounted for 80 vehicles, while 1969 production increased to 116 vehicles. The 2nd design version was THE SAME, less the weight-saving aluminum block. More on the power figures later. USAF Retired (1968-1988) UTC Aerospace Systems, Space Systems International - Retired (1989-2014) May 2, 2016 · SPECIFICATIONS 1968 Chevrolet Camaro SS 427 L88. com Specifications for the 1968 Corvette, including dimensions, electrical, capacities, engine, and features. Jan 15, 2020 · They have a catalog of cam lobe profiles, just find the closest match to the L88 in terms of lift and duration, then order a custom cam with the L88's lobe separation angle and lobe advance. For 1968 Aug 7, 2015 · The L88 stayed in production until 1969 with a total of 216 produced. 050-inch tappet lift with 0. See full list on musclecarclub. Purchase 1967-1969 Corvette 427/430hp L88 Solid Lifter Camshaft at Zip, internal engine components to rebuild your C2 or C3 Corvette engine. So if anyone can tell me what a good cam is and also what the stock cams specs are. the 425hp quoted. 309/. Includes performance data, fuel economy, dimensions, engine details, and more. 5:1-12. 500 lift,114 L/S angle for the cam. with all the same cam, compression, and head specs of the more demure 350hp 396 in 1966 If you lookt at a motors manual for 1965 and compare the cam, compression of a 1965 425hp vett BBC to a 1966 chevelle SS 375hp. The CAM I had was a GM 350 hp cam. 032 1968-69 A Historic Guide to Original Muscle Car Camshaft Profiles These profiles have been compiled from camshaft grinders, factory and aftermarket camshaft listings, and are believed to be accurate to the best of our knowledge. powerplant fitted to Corvettes from 1967-1969. i have one with 9181 on the end. The Lunati Voodoo hyd & solid series cams are a good example of great cams for street BBC. 500 USD more costly than base model. 50 Cam Lift Opens Closes Duration SAE Specs@ (0. Apr 5, 2009 · MOST sources will speak of these differences between the ZL1 and the L88; this applies only to the 1st design L88. i. (Image/Summit Racing) Nov 2, 2011 · C1 & C2 Corvettes - L88 with cam at idle (video) - If you've ever wondered how the L88 with 12. What set this car apart was a comprehensive racing package that included the big block V8 with solid-lifters and Can-Am-spec cylinder heads. And YES, the ZL1 did indeed make LESS power than the L88 (2nd design). The specs: . 015") 112° LSA Jul 25, 2017 · This cam is for a ZL1 & LS7 & 2nd design L88. 0 in the last half of 1969. Mar 14, 2005 · Can anybody give me the speCs for the 427 l88 Camshaft thanx. 1968 and 1969 L88 engines were fitted with smog pumps in place of the road draft tube and a Positive Crankcase Vent was fitted. The higher compression along with the cam will sound better. 1969 Corvette VIN decoder. Mar 3, 2011 · In the body section of Team Camaro I stated I have a 396 with a L88 cam. 015") 347°/359° ADV. 29 BBC -14 ATC 195 57 BBC 25 ATC 282 . This powerhouse was the heart of the iconic Corvette L88, designed for ultimate performance on the track. 550 inch. ) Part No. The Chevy L88 is the top dog of production Chevy 427s. 7 liters). The camshaft must bleed a lot of the low RPM cylinder pressure. Just curious as it seems 575-600 HP is the range with a 427 Wondering what a 454 would dojust bench racing here. I've heard engines with L-88 cams and they sure do sound good at an idle though. A set of solid lifters Jul 17, 2019 · Trivia fact: the L71 cam lobe (single pattern cam) and the LT-1 intake lobe (double pattern cam) are the same lobe! OTOH the L88 cam had 264 duration and was a true race engine camshaft, not designed for the street at all, with no real concern for vacuum. The total L88 Corvette production for 1967 measured a paltry 20 units. The cam is Chevy flat tappet #3959180 - L88 2nd design. Although it shared the same basic architecture as the more pedestrian Mark IV big-blocks that powered countless Impalas, Caprices, and even trucks, in actuality it was a carefully concealed racing engine disguised as a somewhat streetable powerplant. Sep 24, 2007 · Trying to go to the RPO-L88 type cam for instance usually requires a compression increase and other changes to take advantage of the cams grind. (1st design L88) camshaft. This is for a NOS, (New Old Stock, GM Discontinued, No Longer Available), Very Rare L-88 Chevrolet Chevy Corvette Grooved Solid Camshaft, (GM Part Number 3925535, GM Group Number 0. 484/. 028/. But there are much better cam grinds out there with 35-40 yrs better profile designs that will outpower the stock 66 396/375 cam by a fair amount and be very streetalbe too. I want a performance step up from stock (which I don't know what it is). Replacement for 400 HP 427 cu. 625-inch lift cam with needle-bearing roller rockers and a Holley Aug 20, 2005 · Anyone build a 11. Synthetic oils with a viscosity rating of 20W-50 are commonly used to provide optimal lubrication and protection. 56ex). Think of it as an iron-block version of the legendary aluminum ZL1 mill. Motion' Rosen had mastered the art of combing real world performance with eye catching looks. 5:1 compression 454 using an L88 cam and GM square port heads Either aluminum or cast iron. Jul 25, 2024 · Here are the recommended engine oil specifications for the L88 engine: – Oil Type: The L88 engine requires high-quality racing-grade oil. -17 BTC 16 ABC 179 16 BTC 56 ABC 252 . The L88 was a fire-breathing variant of GM’s 427 cubic-inch big-block lineup, which served as nothing short of a production race engine. 1968 was a year of bold new design changes for the Corvette. 68 to . In 1968, a total of 28,566 Corvettes were manufactured, comprising 9,936 Coupes and 18,630 Convertibles. The specs for this solid flat-tappet cam are enough to A detailed cutaway illustration of the Chevrolet L88 427 Big-Block engine, showcasing its advanced engineering features, including aluminum heads, a solid-lifter camshaft, and a Holley 850-cfm carburetor. 5:1 compression ratio, an 850-cfm Holley carb, dramatically beefed internals, and aluminum heads. The only difference is that mine has the . Connecting rods for both years should be 3969804 with the 7/16" Boron steel rod bolts and the crank should be forging number 7115, p/n 3967811. He said between the two cams the car ran the same, but the ZL-1 cam made it a lot more driveable on the street. All of the L88 model got 4 Disc Brake (Power Brake) and heavy duty suspension also it has 200 mph Spedometer. If you want to rebuild your motor to exact factory specs then purchase a blueprint series factory replacement cam from crane or comp. A set of solid lifters Mar 8, 2011 · Both ( L88 & l72 cams ) are very outdated and lazy compared to current cams. The 454 pulled more torque, but power was just about the same as the L88. 560 intake and . MODEL: 1968 Chevrolet Corvette: BODY STYLE: 430 HP (L88), MANUAL TRANS, ALUMINUM HEADS IU: 427 CUBIC INCH, 435 HP, MANUAL TRANS Sep 21, 2005 · There is little doubt that our unexpectedly strong power numbers were adirect result of the special Competition Cams CB Nostalgia LS-6+ cam. By the way, all 427s used the same block, even the L88. Mar 28, 2016 · View complete technical specifications for 1968 Chevrolet Corvette 427 L88. I got some great feedback from my fellow team members telling me this cam maybe more than what I need for my application which is a driver and highway cruising. you will note the cam and compression are identical. Get all the Info. Apr 20, 2020 · No discussion of iconic engines from the muscle car era is complete without consideration of Chevy’s legendary L88. 76; Bore = 4. 251; Compression = 12. I went with the original compression ratio and bought the L88 replacement cam from GM Performance (All of the paperwork in the box said Crane. The racing model got 600 Hp and can reach 194 mph in 12 Hours race in Sebring C3 Chevrolet Corvette L88: History, Engine, and Performance The L-88 C3 was made from 1968-1969 in both convertible and coupe models, with only around 200 of Explore the Chevrolet Corvette C3 Stingray Coupe 1968 427 V8 Turbo-Jet 400HP 4-speed 1967, 1968 detailed specs, including 0-60 mph times, horsepower, and handling data. Ran great with 4 spd trans. 1968 Corvette Specs “Corvette ’68… all different all over”. 2016 Chevrolet Corvette Z06 C7. ) Firing Order CAMSHAFT SPECIFICATIONS (Cont. Apr 5, 2010 · in the one year only 1965Z16 it was rated @ 375hp. I am looking for a streetable CAM and may decide to go with the same CAM unless someone can recommend something that would turn out better than what I had. i know the one say 400 hp but added it anyway, hope it helps. (GM Part 3925535, 3928909, 3928911) Aug 25, 2009 · JGM's Jeff LaTimes reports this engine used a Crane version of an original L88 mechanical cam but with slightly different specs listed at 255/262 degrees at 0. 578/. Officially rated at 430 HP, the L88 was capable of propelling its C2 host to previously unattainable performance status. Given their value, probably not the wisest thing to do. other wise a degree wheel and a indicator will be the best way to find out. 11 gears with this combo and have also change the overdrive gear from . R Edition: The Closest You’ll Get to the Le Mans By 1968, Joel 'Mr. 56/4. in. 290hp at the wheels is probably more like 350hp at the crank, vs. Specs @ 0. As cast too. Officially, the 1967 L88 is rated at 430 hp @ 5200 RPM, 460 lb/ft torque @ 4,000 RPM. – Oil Capacity: The L88 engine has an oil capacity of approximately 6 quarts (5. Jan 1, 2002 · The cam's specifications more closely resembled a race unit than anything Chevy had ever sold for street. P4529316 284/284 241/241 . 256 . This is for a NOS, (New Old Stock, GM Discontinued, No Longer Available), Very Rare L-88 Chevrolet Chevy Corvette Grooved Solid Camshaft, (GM Part Number 3925535, GM Group Number 0. I would like to know if this cam is legit? Jul 8, 2021 · 1968-1969 Chevy Camaro Chevy 427 Performance Potential The L72 engine was quoted at 425hp but dyno’d around the 290whp mark. The unique hood bulge, with cowl cold air induction, is the first clue that a Corvette has an L88 option package. " (This quote comes from Classic Corvette-The First 30 Years by Mike 1968 Corvette Advertisement – Showcasing the Classic Design. 612 (lift specs Per Lingenfelter as measured in the LS7, figures below not per Lingenfelter) 262°/272° @ . I have always seen these cams with 9181 designation on the end. 313 . Lift the hood (if you have the owner’s permission), and you’ll find an air cleaner embedded in the underside of the fiberglass hood, with a fire arrestor screen setting on the top of the carburetor. 050 IO 62° BTDC, IC 105° ABDC (@ . Mar 13, 2025 · L88 – 427 CID V-8 rated 430 HP (strictly for off-road use), This engine featured a high-capacity Holley 4-barrel carb, aluminum heads, an extremely radical duration mechanical camshaft, a unique air induction system, and an ultra-high compression ratio of 12. would pull hard from 2200 to 7200rpm, i have a tremec in my velle and have run 4. 33/4. Well if you want to buy this in 1968, you must order it under RPO C48 and this car doesn't has radio and heater. 519) for 1967 67 1968 68 and 1969 69 with L88 Engines. 600 exhaust lift with 110 degree lobe spacing. 386 112 HYD CCS-39 INT. World Aug 16, 2010 · A good 427 (L88) would put out about 600 horsepower. Jul 25, 2011 · From talking to one of the drag racers I know he ran both the ZL-1 and L-88 cams in his old L-88. There are also some really good Hydraulic cams that deliver nearly the same results with less upkeep than the original Solids. hnbtk gcvuztn eaer tfvvb hbvu uzrxq fxj bryqxgh pvkml aokdx