[331coupe]

what is the cc in the chamber of a stock head?? 50 something??

 

[893]

I think its 64, but Im sure someone will correct me if Im wrong

 

[331coupe]

oh

ok, cool thanks man!! I was just wondering, because I am selling my 331 shortblock, and just going with a stock 302 bottom end, and was wondering if I am going to up the compression with the heads I am using

 

[Guest]

I believe stock heads are 61cc...

 

[93 Incon Cobra]

61

 

[331coupe]

ok

well my heads are the edelbrock performers, and the cc is 60. How much would the compression increase if my heads have been milled .010. 9.5?? more??

 

[ssccoupe]

im pretty sure the smaller the combustion chamber the higher the compression goes.. unless you use different compression pistions.. correct me if im wrong...

 

[331coupe]

duh

I know the compression will go up due to my edelbrock heads having a smaller cc chamber, but how much more?? they have also been milled .010.

 

[93 Incon Cobra]

just do a search for compression ratio calculators. There are several on the net.

 

[DarrenK]

64

 

[331coupe]

61 or 64cc???

which is it?? anyone know for sure??