Brand new set of forged small block Chevy pistons in the box.

These are for 350 (3.48” stroke) engines.

Published compression height is 1.565”

Published piston head volume is +3.40 cc

10:1 compression at stock deck with 64cc heads

9:1 compression with stock deck with 76cc heads

11:1 compression with stock deck with L30 Vortec 58cc

There is conflicting data regarding these pistons on major retailer’s websites indicating they are for 3.75 stroke, however if you calculate compression height to deck height using 3.48” stroke and 5.7 rods they are clearly correct for standard 3.48 stroke cranks. You end up with.020” in the hole at stock deck height.

These are 4.060” diameter for .060” overbored blocks.