Hastings "Tough Guy" Claimer Series Racing Piston Ring Set - Bore Size: 4.000" Top Ring: 1/16", Second Ring: 1/16", Oil Ring: 3/16" - Phospate Coated Top Ring 130927 48 in Oval Port

48 in Oval Port

Ratchet Action Ensures Positive Shifts

THIS SB FORD EXHAUST HEADER BOLT KIT IS THE SAME ONE INCLUDED IN ALL BBK SB FORD EXHAUST HEADER KITS

375 (3/8'') over stock location

Hastings "Tough Guy" Claimer Series Racing Piston Ring Set - Bore Size: 4.000" Top Ring: 1/16", Second Ring: 1/16", Oil Ring: 3/16" - Phospate Coated Top Ring 130927 48 in Oval PortAffordable and designed to deliver exceptional performance, piston ring sets include choice of plasma moly or phosphate coated cast iron top rings, reverse twist cast iron second rings, and patented Flex Vent, standard tension oil control rings. Sold in eight cylinder sets. Features: Claimer Cast (C) Series includes top rings made of proprietary shell mold cast iron, phosphate coated, with a torsional top ring. Advantages of cast iron rings include: