Speed Pro H635CP60 12.5:1 383 Stroker Small Block Chevy 5.7 Rod Piston FMP .60

Chevy 383 Speed Pro Pistons

For sale is a new set (8) of Speed Pro hypereutectic Chevy 383 stroker pistons - H635CP. +60 bore 350 with 3.75" stroke crankshaft. Dome piston with 2 valve reliefs. Anti-friction coated skirts. For use with 5.7" connecting rods. Includes pins and wire locks. Can be used with either pressed fit or bushed rods.

H635CP60 Bore 4.060" Stroke 3.75" Dome Shape .200 dome, 2 VR Dome Volume 9.5 cc Comp. Distance 1.425" Pin Type Press or Float Ring Size 5/64, 5/64, 3/16 Piston Weight 551 g. (approx)     Compression (@ .025 deck clearance) 58cc 64cc 68cc 72cc 76cc 13.65 12.55 11.91 11.34 10.83

These hypereutectic Speed Pros are perfect for stock to moderate performance rebuilds. Silicone aluminum alloy allows them to run with tighter clearances, less friction, and increased sealing. Higher strength compared to regular cast pistons. Duroshield coating on piston skirts delivers longer life and reduced friction.