7 Venolia 4.060" forged pistons. 6 very slightly used and 1 new. Rings and .990" pins included. Comp height 1.864".(.481" in the cylinder) 8.3-1 comp with stock rods. +1/8" 10.5-1, +3/16" 12.2-1. From the estate of SCTA/Bonneville racer Bruce Johnston. $200 J.D. Tone 714-488-6851 gmc6power@earthlink.net for photos.