Combustion chamber size?

[EHardy1971]

Ok,what's the size difference on E-7's VS. GT-40 Irons? I want to say the E-7's are 68cc,and the 40's are 64-65cc,but I forgot! Just doing some figuring here on what my CR difference will be (if any) when I change over heads.:shrug:

[militarymustang88gt]

i think the e7s are 64s and the gt 40s are 62 or 60.
but i cant fully remember either. they are 2 cc difference.

[QWKSNKE]

The 40's are around a 64cc as well.

There was no compression ratio difference between a 93 cobra and a 93 GT so that would also make believe they are the same

[EHardy1971]

Ok,Thanks!:D