KB Hypereutectic Dished Piston Set - SB Chevy 283-400 - Bore Size: 4.030", Stroke: 3.480", Rod Length: 5.700" 19300905 4 AN Female Swivel to

4 AN Female Swivel to 1/4 in NPT Male

Fan Included

1/2" Copper Drain Plug Washers

the spring's consistency

Aluminum / Vinyl

KB Hypereutectic Dished Piston Set - SB Chevy 283-400 - Bore Size: 4.030", Stroke: 3.480", Rod Length: 5.700" 19300905 4 AN Female Swivel toKeith 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