SBC CHEVY 383 STROKER SPEED PRO DISH PISTONS 5.7 4.030

Chevy 383 Speed Pro Pistons

This is a new set (8) of Speed Pro hypereutectic Chevy 383 stroker pistons - H859CP. +30 bore. 350 block with 3.75" stroke crankshaft. Dish 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.

Compression (@ .025 deck clearance)

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.