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Longhorn Man · 07-17-2002, 11:02 PM

Ok, if I had an engine..oh, say displacing 425 cubes or so, and it is an 8.2:1 Compression Ratio, and it has 96cc heads on it, what would happen if I slapped a set of 76 cc heads...how about 120cc heads?
I know it would go up with the 76cc, and down with the 120cc...but how much?
Can anyone here calculate the C/R with the given head numbers?

07-17-2002, 11:02 PM	#1
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,690	Need a math whizzz Ok, if I had an engine..oh, say displacing 425 cubes or so, and it is an 8.2:1 Compression Ratio, and it has 96cc heads on it, what would happen if I slapped a set of 76 cc heads...how about 120cc heads? I know it would go up with the 76cc, and down with the 120cc...but how much? Can anyone here calculate the C/R with the given head numbers?