chevy 350 old head

[hotrodscoot]

I put a set of heads with 202 valvs and large ports i think i need dome piston.how can check compression ratio it acts like its low compression any help would be great

[COONDAWG]

large cc combustion chamber? valve condition? bottom end condition?

[hotrodscoot]

Originally posted by hotrodscoot
I put a set of heads with 202 valvs and large ports i think i need dome piston.how can check compression ratio it acts like its low compression any help would be great

well it has large combustion chamber its been redone when i said old head i ment old style head has been redone mild cam new carb intake rebult motor but it runs like it has low compression, and i seen the new style heads and they have small combustion chambers