KB Hypereutectic Dished Piston Set - SB Chevy 283-400 - Bore Size: 4.030", Stroke: 3.480", Rod Length: 5.700" H760C39 Designed for most border and

Designed for most border and loop style nets

1979 Chevrolet Monte Carlo Base CID 231 Naturally Aspirated GAS

and smaller competition engines

Fits Arai: GP-6

Magnesium bases are powdercoated for corrosion resistance

KB Hypereutectic Dished Piston Set - SB Chevy 283-400 - Bore Size: 4.030", Stroke: 3.480", Rod Length: 5.700" H760C39 Designed for most border andKeith Black pistons have several important advantages over conventional alloy pistons. High silicon content yields superior thermal and wear characteristics, greater strength, scuff and seizure protection, and resistance to cracking. High silicon content also keeps heat in the combustion chambers, eliminating heat transfer and improving combustion. Pistons are machined for 5 64" top, 5 64" second and 3 16" oil ring unless noted. Sold in sets of eight