Greg, I used Diamond pistons and they have a dome shaped to match the Indy 440-1 heads which might help in a high compression build... Work good for me!

Good Luck, Arnie


67 Cuda 8.48@ 158.7 mph 1.18 60' 2,600 DA(so far...) 70 Super Bee 440 Six Pack 4-speed. 13.2 @ 104 Stock exhaust/Street tires.