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Old 08-05-2021, 11:53 AM
deltarat deltarat is offline
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Join Date: Jul 2021
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Quote:
Originally Posted by HoneyHush View Post
Isn’t a 350 with 72cc heads still only at about 9.5 to 1? And that is with a small gasket. I know an 80cc head is like 8 to 1 on them, and that’s Pontiac’s advertised compression isn’t it?
3.905 bore
3.75 stroke
+10cc estimated valve reliefs. cant find specs on the piston
0.010 deck height
0.030 CHGT
72 cc head
gives me a 9.2:1