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 5 approved titanium Nomex ®

5 approved titanium Nomex ® ®and racing suit

Performer Series Carb Calibration Kits include an assortment of metering rods and jets

backed by a 3-year limited warranty

Our rebuild kits include every possible gasket and seal you'll need along with many parts not included in other kits like detailed instructions and a power valve

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 5 approved titanium Nomex ®Keith 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