L78 cam kit
 

I am sure this has been kicked around before, but trying to get a straight answer. Who makes the best L78 replacement cam and lifters for a 69-70 L78 ?, Doing a rebuild and need to replace the orig "043". Thanks for the help in advance SULLY

Re: L78 cam kit
 

I had a Crane Cam Blueprint Series muscle car cam installed in my 1969 L78 when it was rebuilt, and it works great. It is supposed to be exactly the same grind as the original. https://www.yenko.net/ubbthreads/imag...lins/beers.gif

Re: L78 cam kit
 

Crane, hands down. They make all the cams for GM, and they work good, and are dead on correct. CLICK HERE for details.

Go to the parts department at your local GM dealer and order it, though, as it will be cheaper and easier. Last time I checked the dealer's cost was right at $133, so don't let 'em rape you...

That thing is ground 6 degrees advanced, as it was from the factory, so you *might* want to look into retarding it, depending of course on the rest of the engine specs...

Re: L78 cam kit
 

Thanks Guys, I am rebuilding the L78 factory orig, 11;1 all other stock components in place except for some original Motion valve covers and headers, I'll check with the local Chev dealer. Thanks again

Re: L78 cam kit
 

I was under the thought that the Wolverine Group was originally grinding the GM cams in the beginning, well, at least in our era....?? https://www.yenko.net/ubbthreads/imag...lins/beers.gif

Re: L78 cam kit
 

The previous owner of my L78 had the cam replaced at a GM dealer in 1999. The work order states they used GM p/n 3904362. The description is "Cams-454 0.519 lift. It is apparently identical to the stock L78 cam. The price then was $185.77.
Martin

Re: L78 cam kit
 

Hmmm...according to GMPP the 362 cam has less lift than the original LS6/L72/L78 cam. https://www.yenko.net/ubbthreads/imag...lins/dunno.gif

Re: L78 cam kit
 

HMMMM!!!!! You are are right Chevy 454. Specs on the original cam indicates .518 lift. Looks like the description on the work order I have could be wrong. https://www.yenko.net/ubbthreads/imag...lins/dunno.gif

Re: L78 cam kit
 

Chevy's lift figures included the lash. .492 + .028 = .520. .496 + .024 = .520. It made the numbers sound better as did the 316 302 duration. 242 told the real story. https://www.yenko.net/ubbthreads/imag...ns/scholar.gif

Re: L78 cam kit
 

DOH! That makes perfect sense, Keith!!

So, what's the difference between the 3904362 and the
12364057 cam?

https://www.yenko.net/ubbthreads/imag...lins/dunno.gif