chamber size on stock LS3 heads

[coops09gxp]

I know this is probably a dumb ass question but could somebody tell me the size of the combustion chamber on our stock LS3 heads please. Thanks for any help that you can provide. Have a great day!

[Greg@PacePerformance]

GM says they are 70cc, but I would guess most are +- 2cc from that

[Daniel Linnett]

69.6 I think is what I was told

[coops09gxp]

Excellent, thank you gentlemen! I have heard both 68 and 70cc. Probably depends on who you talk to and kinda like Greg mentioned, = or - 2cc. Again, thanks for the help guys!!!

[Patrick G]

69.8cc.

[coops09gxp]

Excellent, thanks Patrick! Talked with Texas Speed about the heads you mentioned. Leaning and looking like I will go ahead and do them. Probably gonna have them do 66cc chambers on them which would require between .01-.015 milling. Just posted up asking for some feedback on them from other people. Having you recommend them is a big plus. Again, thanks for the input guys!!! Have a great day!

Tony