1969 L88 camshaft
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Heel & Toe
Joined: Nov 2007
Posts: 16
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1969 L88 camshaft
Does anyone know if any camshaft manufacturer is making an exact replica of the 1969 L88 camshaft GM part# 3928909? Apparently Crane Cams used to but they went bankrupt in Feb 2009.
Melting Slicks
Joined: Oct 2008
Posts: 2,154
Likes: 69
From: Regina Sk Canada
If you know what the cam specs are, call any cam grinder and they will grind you that cam. Cam Motion designed and ground my last solid roller for my BBC. Also asked them to put a cast gear on the cam so i didnt have to run a brass distributor gear.
Safety Car
Joined: Nov 2008
Posts: 3,717
Likes: 551
From: Seattle Washington
Comp cams seems to be the Main cam grinder left I wouldn't be surprised if they don't have one on the shelf. I have seen them in the NOS box on e-bay every so often. Unless there is a reason to have the excact spec cam a more modern cam profile will probably work better for You no mater what you intend to use the car for.
Burning Brakes
Joined: Sep 2008
Posts: 753
Likes: 0
in my new L88 engine build -still at the shop now- I decided for the Comp cam nostalgia ZL1. about same specs of the L88 cam but faster ramps and tighter lash.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... ( my L88 cam is up for sale, with the whole block, of course...!!!!!)
I'm curious to see the difference in respect to my former engine which has the original L88 cam and lifters instead... ( my L88 cam is up for sale, with the whole block, of course...!!!!!)
6th Gear
Joined: Nov 2011
Posts: 6
Likes: 0
From: Rio Linda Ca
SSI camshaft
I was wondering if anyone has information on this cam? it is a 541 560 lift, 264 270 duration @50 LSA 112. Made by ssi from paw. I want the car to pull hard over 7000 rpms and have low end also. My dad use to play with the old speed o motive cams 560 600 lift and the 3/4 race cams, and he said they would scream. He said it sounded like the bigblock chevys could come appart. Is this cam cappible of that kinda power?
Le Mans Master
Joined: Dec 2003
Posts: 5,727
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From: Fremont CA
Drifting
Joined: Aug 2005
Posts: 1,682
Likes: 3
From: League City TX
6th Gear
Joined: Nov 2011
Posts: 6
Likes: 0
From: Rio Linda Ca
Thanks for the info do by chanse know what this cam may do? I know with the setup I got the power dont come in till 4 grand. Im trying to build something that ran as good as the L88 and ZL1, I like the lift to be under 600 so it dont damage the valve train, and when GM does things they knew what they were doing
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6th Gear
Joined: Nov 2011
Posts: 6
Likes: 0
From: Rio Linda Ca
They went out sometime in 2010, but my dad got that cam back in the early 90's when Super Shops was still around. They had a place in Citrus Heights,Ca. What kind of power would u make and what rpm range?
Melting Slicks
Joined: Mar 2007
Posts: 2,100
Likes: 12
From: Frederick Maryland
My '69 L71 had a crane L88 cam installed when rebuilt by the previous owner. A copy of the data card for the cam is attached. You'll see that the power band for the cam is 4400-7000 rpm's. I've found that after you pass 4000 rpm's you feel a real kick in the pants as the engine really starts breathing.
You should add stronger connecting rods or have the originals shot peened for added strength. Many big blocks have thrown rods from being revved beyond their limits.
BTW - you should make sure this is what you want in your engine. It doesn't give the low end the original cam gives and makes for a very cranky engine. The good thing is the 427 itself has plenty of torque to begin with...once you get the rpm's up it is awesome. It's barely streetable but still...but it's a beast.
You should add stronger connecting rods or have the originals shot peened for added strength. Many big blocks have thrown rods from being revved beyond their limits.
BTW - you should make sure this is what you want in your engine. It doesn't give the low end the original cam gives and makes for a very cranky engine. The good thing is the 427 itself has plenty of torque to begin with...once you get the rpm's up it is awesome. It's barely streetable but still...but it's a beast.
Team Owner
Joined: Apr 1999
Posts: 21,953
Likes: 1,445
From: Reno Nevada
2024 C3 of the Year Finalist- Modified
Never underestimate human stupidity. I'm talking about you who use or even claim the greatness of a cam created 40+ years ago. Radical sound doesn't = HP But the cam companies still make make them for the moron masses
You might as well throw a gear drive on it also and really make it Bad A. and tell your freinds that it does 8500 rpm if you have the ***** to keep your foot in it.
You might as well throw a gear drive on it also and really make it Bad A. and tell your freinds that it does 8500 rpm if you have the ***** to keep your foot in it.
Safety Car
Joined: Nov 2008
Posts: 3,717
Likes: 551
From: Seattle Washington
Comp Cams has developed a Cam line to address this very issue. There " Thumper Line" of Cams. They are modern profile Cam's but Idle like a Cam of yesterday so they sound right (idle badly) for a Cam of the 1960's.
6th Gear
Joined: Nov 2011
Posts: 6
Likes: 0
From: Rio Linda Ca
I need to find a cam that will perform with a 427 11:1 aluminum heads 225 intake 188 exh. 115 cc open chamber 325 cc runner. intake will be super victor. I want this cam to preform from idle to above 7000 rpms and pull 10's in the quarter with ease. What would you suggest
Team Owner
Joined: Apr 1999
Posts: 21,953
Likes: 1,445
From: Reno Nevada
2024 C3 of the Year Finalist- Modified
I need to find a cam that will perform with a 427 11:1 aluminum heads 225 intake 188 exh. 115 cc open chamber 325 cc runner. intake will be super victor. I want this cam to preform from idle to above 7000 rpms and pull 10's in the quarter with ease. What would you suggest
6th Gear
Joined: Nov 2011
Posts: 6
Likes: 0
From: Rio Linda Ca
My cam just went flat, so Im starting over. Looking at a solid roller 588 588 lift, 254 int 260 exh. @.050 110 lobe sep. That is a comp cam. Crower has one 580 587 256 int
260 exh. @.050 112 lobe sep. And then im going 12:1 compression 468. Just wondering if any one has tried these cams?
260 exh. @.050 112 lobe sep. And then im going 12:1 compression 468. Just wondering if any one has tried these cams?
Melting Slicks
Joined: Oct 2008
Posts: 2,154
Likes: 69
From: Regina Sk Canada
Cycle gear your Duration @.050 is bang on, you will love either of those cams. With the 112 LSA that will make nitrous very happy if you decide to toss a bottle on it. My last 468, was ground by Cam motion, I am sure the spec was .692/.685 with .262/.270 @.050 on a 112 LSA. with the 305 AFR rec ports and 12.2-1 compression we made 706 hp and 622 tq. Motor made power to 7000 rpm.
Melting Slicks
Joined: Oct 2008
Posts: 2,154
Likes: 69
From: Regina Sk Canada
Sorry Cycle gear, i had a hyd roller with your spec in my 427, 11.5-1 compression EDDy rpm performer oval ports .585/.585 with .245/.255 @ .050 on a 112 LSA. made 550 hp and 513 tq. went 9.92 @ 130 mph in a 3600 lb camaro on the bottle with a 250 hit in it.
