I am confused. If you look at Summit or anyplace else they list the head at 119cc. Dart's website says 121cc. I know its not allot, and I can nott CC them myself until I buy them.
Any input

The Iron Eagles we used said that they were 121cc when we cc'ed them they were 124cc cut them to 118cc.

hey bigjim,
the pro 1's i recently purchased cc'd just over 121 after i cleaned up the chambers a bit. i didn't take as much material out as i wanted to due to losing comp.

I am just trying to get close so I can order pistons before the year end price increase. There are some great deals out there if you order before 12/31.
I just thougth someone with first had knowledge would pipe in. I will go with the 121cc now.

Depends on the C&C program used and who did the valve job. Stock with no C&C work done would start at 119 and increase from that point depending in program ran , valves and v job..

It also depends on which valves they use to cc the chambers. The ferrea exhaust has a 2 cc dish in the valve. Their intake has a little more volume than the manley as well.