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Old 02-04-2013, 08:52 PM
demarques_191 demarques_191 is online now
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compression for street 383 question??

Can someone tell me if i run this bottom end kit Scat Engine Rotating Assemblies 1-40805-1 - SummitRacing.com and used 70cc chamber edelbrock performer rpm heads for my 383 chevy, will it be street usable? I want to be below 10.1 compression.... Thanx

Now i got a email from Summitracing and they said using these pistons with the 64cc head...
"Based on a .025" deck and a .040" thick head gasket the compression ratio will be about 10.47:1. Pump gas may not make it. If a Zero deck block the compression moves to 11.11:1.

AC"

So im thinking if i went to a 70cc it should put me at 9.5 to 10.1 ...
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