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Re: 1968 c10 396
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Running one from 1970 here with stock 60 over bottom end and stock iron heads ( #063 ). Best I could figure with all the measurements and calculators out there was my particular combination is at about 9 or 9.5 to 1. I mic'd everything I could and cc'd the chambers but ended up having to estimate the piston dome still.
It's a very strong running motor with 12* initial and 36 total, no vacuum advance. Definitely beats the crap out of any stock 350 but it's done below 5000 rpm ( as per the cam selection ). Speaking of...Comp XR270HR.
Hth,
-klb
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67 C10 fleet fuel injected '70 402, 700r4, 3.73 posi
07 335 sport turbo 6sp
94 Trans Am GT LT1 6sp posi -- sold after 22yrs
99 540 sport V8 6sp -- sold
73 240z L24 4sp -- given to friend
68 C10 step 350/350 3.73 open -- sold
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