Thread: Compression Ratio?
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02-18-2010 08:14 AM #1
Compression Ratio?
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
Dammit, another good ol boy gone. Condolence to the family. RIP Mike
RIP Mike Frade, aka 34_40