1968 c10 396 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

mike's1965 · 11-29-2019, 05:49 PM

I was wondering if anyone knows what the compression ratio would be a stock 1968 C10 396.

I have one in my 1965 I swapped in years ago, and I got it out of a 1974 C10 truck that was supposed to be a 454, didn't know until a few years later and looked up the numbers.

Was thinking of getting a cam for it, but kind of need to know more.

I recall the heads are 1968-1976 427 oval heads, not sure if these 396 engines came with those heads, or someone put them on.

It may have a cam already, has some lope, about to put on pro flow 4 Edelbrock fuel injection system for oval port big block Chevy.

Are these low compression engines?

11-29-2019, 05:49 PM	#1
mike's1965 Registered User Join Date: Nov 2012 Location: queen creek az Posts: 133	1968 c10 396 I was wondering if anyone knows what the compression ratio would be a stock 1968 C10 396. I have one in my 1965 I swapped in years ago, and I got it out of a 1974 C10 truck that was supposed to be a 454, didn't know until a few years later and looked up the numbers. Was thinking of getting a cam for it, but kind of need to know more. I recall the heads are 1968-1976 427 oval heads, not sure if these 396 engines came with those heads, or someone put them on. It may have a cam already, has some lope, about to put on pro flow 4 Edelbrock fuel injection system for oval port big block Chevy. Are these low compression engines?



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