KB Hypereutectic Flat Top Piston Set - SB Ford 289-351W - Bore Size: 4.030", Stroke: 3.400", Rod Length: 5.400" SC041 NOT FOR USE WITH METHANOL

NOT FOR USE WITH METHANOL

leading to poor handling and premature tire wear

1971-1977 Ford Custom 500

47000 lb Breaking Strength

KB Hypereutectic Flat Top Piston Set - SB Ford 289-351W - Bore Size: 4.030", Stroke: 3.400", Rod Length: 5.400" SC041 NOT FOR USE WITH METHANOLKeith 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