KB Performance Pistons Hypereutectic Flat Top Piston and Ring Set - 4.040 in Bore - 5/64 x 5/64 x 3/16 in Ring Grooves - Minus 7.00 cc - Small Block Chevy 20602S Brake Hardware Clips Included

Brake Hardware Clips Included

1-7/8 in Primary

8 in Collector Length

1955-1959 Panhard Dyna

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KB Performance Pistons Hypereutectic Flat Top Piston and Ring Set - 4.040 in Bore - 5/64 x 5/64 x 3/16 in Ring Grooves - Minus 7.00 cc - Small Block Chevy 20602S Brake Hardware Clips IncludedProduct Description: Piston and Rings Hypereutectic Flat Top 4. 040 in Bore 1. 433 in Compression Height 5 64 x 5 64 x 3 16 in Ring Grooves Minus 7. 00 cc Small Block Chevy Keith Black pistons have several important advantages over conventional alloy pistons. KB Hypereutectic Pistons high silicon content yields superior thermal and wear characteristics, greater strength, scuff and seizure protection, and resistance to cracking. High silicon content