defiant1

Trying to determine CR. Does anyone know the piston volume of the stock 1970 Olds 350? I have researched and cannot get a concrete answer. I have seen anywhere from 21 to 24cc.

d1

captjim

The low comp engine will have 14cc dish, the high comp (which you probably don't have) will have a 6 cc dish. 71-72 350s all had a 23 cc dish. In 73 they went back to a 14cc dish and made the #8 head chamber larger to lower compression. Why the only available replacement is 23cc is beyond me..................

defiant1

Thank you sir. I still need to have the heads done. But this info will help in the final camshaft determination. Which I will pick your brain as well as cutlassefi on a good cam for my application.

d1