76cc to 64cc how much will the compression go up?
01-01-2002, 01:49 PM
#1
Instructor
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Location: Goose Creek, S.C., U.S.A.
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76cc to 64cc how much will the compression go up?
I'm thinking about putting vortec heads on my car. Currently have stock heads and compression. how much will this raise compression?
Thanks
Thanks
01-01-2002, 02:22 PM
#2
Re: 76cc to 64cc how much will the compression go up? (waterhead)
01-01-2002, 02:23 PM
#3
Burning Brakes
Re: 76cc to 64cc how much will the compression go up? (waterhead)
On my currnet combo, switching to 64cc heads and a .015 thin shim gasket was worth about +1.25 CR points. When your heads are off you can measure your deck height and figure your piston relief and go somewhere like smokemup.com to get an exact figure. I didn't notice a HUGE peformance increase from this switch alone, but I feel better.
