Inliners International Forums General Discussion Hi Performance Building a 302 GMC for LSR

Tom,
Glad to help. We redline the engine @ 6000 just to be safe. With the piston/rod/pin weight reduction and Fluidampr I think the crank will be safe at that rpm. By the way, a SB Chevy Fluidampr bolts on without any modification.

Panic,
I'll look for some pictures of the combustion chamber.

8.115" is the stock 308 Hudson rod C_C and the CB-90P bearing fits the rod without modification. You will have to turn the GMC rod journal to the Hudson size and narrow the rod to fit the GMC rod journal. The small end of the rod will usually hone to a Pontiac pin. I had to get Pontiac pins that were 0.884' (0.004 oversize) because I screwed up one of the rods and honed it too much.(asleep at the wheel).

If you port the head you need to get the intake valve lift above 0.600" to make the best power. In that case I'd talk to Dema Elgin to get the best cam.

Hope this helps guys.

Ron