Thread: Compression Ratio?

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Hi All,
I am new to this site and wanted to see what y'all have to offer. It looks impressive so here I go.
I searched this with no luck. I have a 67 327cid engine I am rebuilding. It will be .030 over with a retro hydraulic roller cam, about 212 @ .50" and .480 lift, appropriate timing chain, distributor gear and all other parts needed fot the retro cam. I have purchased the pistons. They are hypereutectic flat tops.
I bought a pair of new heads several years back and want to use them. They are Dart Eagle 165cc with 2.02 - 1.60 valves. I have gasket matched and mildly blended the bowles. The problem is that they are 72cc chambers. Can you guy's give me feedback as to what I can do to get the compression ratio to 9 or 9.5:1? One worry is that with these valves, they may kill the charge velocity. I have a good streetable induction and exhaust system.
Any and all comments or suggestions will be appreciated.
Thanks,
Ken

change pistons or cut heads to 64 cc

Get a different set of pistons and sell the ones you have. It is the less expensive way to go and a better way to correct the problem. I have never liked planing heads to achieve a compression ratio.

problem is that 327 pistons are scarce in confiqurations that would raise the CR that much

I used these pistons in a 327 15 years ago. These should raise your compression to a better level. They are similar to the 350 hp and 365 hp 327's in Nova's and Corvettes.

www.summitracing.com/parts/TRW-8KL2166NF30/