KB Hypereutectic Flat Top Piston Set - SB Chevy 283-400 - Bore Size: 4.040", Stroke: 3.750", Rod Length: 6.00" External Bump Stop Kit backed by a 3-year limited

backed by a 3-year limited warranty

5 approved titanium Nomex ® ®and racing suit

Pro Stock I

Maintain OBD-II Data Signal IntegrityAuto Meter Gauges are the number one choice of professional racers worldwide

KB Hypereutectic Flat Top Piston Set - SB Chevy 283-400 - Bore Size: 4.040", Stroke: 3.750", Rod Length: 6.00" External Bump Stop Kit backed by a 3-year limitedKeith 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 combustionchambers, 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