The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - can a GM 5.3 L hold 500hp??? are the internals forged at all?

turbochevy · 02-25-2007, 10:47 PM

I made 504/475 on 9 psi with a small cam on my stock 5.3L Ran it for 53K before I retired the truck to work duty.

02-25-2007, 10:47 PM	#3
turbochevy Senior Member Join Date: Nov 2006 Location: Chatsworth, So Cal! Posts: 226	Re: can a GM 5.3 L hold 500hp??? are the internals forged at all? I made 504/475 on 9 psi with a small cam on my stock 5.3L Ran it for 53K before I retired the truck to work duty. __________________ 1970 Chevy C 10 SWB