KB Hypereutectic Dome Piston Set - SB Chevy 283-400 - Bore Size: 4.040", Stroke: 3.250", Rod Length: 5.700" 921015 Ergonomic grip with Momentary button

Ergonomic grip with Momentary button

12 x 11 x 12 in

1/2 in Bolts and Studs

1974-1974 Plymouth Barracuda

KB Hypereutectic Dome Piston Set - SB Chevy 283-400 - Bore Size: 4.040", Stroke: 3.250", Rod Length: 5.700" 921015 Ergonomic grip with Momentary buttonKeith 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