ls6 cam

**k92** · #1 10-01-2005, 01:15 PM

I just sent my ls6 block to the machine shop to get built and am still thinking about what cam to use. Comp Cams makes an exact dupicate of the original GM cam.They also make what they call a nostalgia plus and a magnum muscle.Has anyone ever used these cams,if so were you pleased with the results?

**SS427** · #2 10-01-2005, 03:34 PM

Rob,
I will let you know shortly as I believe this is the cam that my engine builder is using on my LS-6. It will be dynoed within the next few weeks so I will let you know the results.
Rick

Chevy454 · #3 10-01-2005, 05:17 PM

GM still sells the 143 cam...it's actually a blueprint cam made by Crane, but last I checked it was cheaper from the GM dealer. Skip the Comp unit and go with the GM/Crane unit, trust me...all blueprint cams are NOT the same, and this thing has proved itself on the track and the dyno...

COPO PETE · #4 10-02-2005, 06:50 AM

Take the comp cam and throw it in the garbage! Get the GM cam by Crane! Over the last 10 years in Pure Stock, I have watch many folks running a "close" cam or the Comp. I can name at least five people that have changed and picked up 2 tenths and 3 MPH. Sorry if I sound blunt, but ya can't polish a turd!
Peter

JLerum · #5 10-02-2005, 08:11 AM

GM does not list the cam in stock last time I checked. What Pete said, take it to heart! Buy the CRANE 143 cam expecially if you are running exhaust manifolds. Besides, the cam is gentile on valve springs comparitively speaking.

JIM

**WILMASBOYL78** · #6 10-04-2005, 07:48 AM

Sounds like good info on the BB cams. Is the L-88 version too much for a "wilder" street motor? Maybe something with enough compression and rear gears to make it intersting. Just doing a little thinking out loud for a future engine project..

wilma

Seattle Sam · #7 10-10-2005, 10:36 PM

[ QUOTE ]
GM still sells the 143 cam...it's actually a blueprint cam made by Crane, but last I checked it was cheaper from the GM dealer. Skip the Comp unit and go with the GM/Crane unit, trust me...all blueprint cams are NOT the same, and this thing has proved itself on the track and the dyno...

[/ QUOTE ]

No longer available through GM and none in stock in the US. However it is still made by Crane with grind # 3863143, you can order from Summit Racing or others.
-Sam

**SS427** · #8 10-28-2005, 05:08 PM

Just picked the engine up last night from a day of dyno tuning at the engine builders. End result with a .040 over 454 otherwise totally stock was 475 hp and 482 ft lbs of torque. Unfortunately the highest horsepower rating was also at the highest RPM at 6100. The bright side is it pulled 290 horse at cruising speed and 475 ft lbs of torque. I was happy over all.

Chevy454 · #9 10-28-2005, 06:10 PM

Headers or manifolds?

**SS427** · #10 10-28-2005, 09:57 PM

Rob,
That was run through stock manifolds with waterpump only hooked up. No air cleaner, recurved distributor and rejetted stock 4557.
Rick

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