I'm planning on putting a set of 3917215 heads on my 67. What would be a good piston to install to get 10:1. The engine is bored .060.

I'd look for a piston with at least a .180 tall dome

I was looking in the Summit catalog at 2240NF60 pistons. In their catalog it says the you get 9.7:1 with 100.9 cc heads. In the Jegs catalog it says you get 8.05:1 with 100.9 cc heads. Which is correct?

Actually, they're both correct, but one must've failed to mention that the 8:1 C.R. is with the domes removed. That number piston is the replacement for G.M.'s L66(265HP), L35(325HP), & L34(350/360HP) optioned cars. Thanks, Gary in N.Y.

Thanks Gary, Kind of had me confused. Now I'm back on track.