Hastings "Tough Guy" Claimer Series Racing Piston Ring Set - Bore Size: 4.155" Top Ring: 1/16", Second Ring: 1/16", Oil Ring: 3/16" - Plasma Moly Top Ring 4386SMLBK 491" ShaftThe COMP Cams philosophy

491" ShaftThe COMP Cams philosophy has never changed: make the highest performing products possible and lead the industry in technological development

1983-1990 GMC G3500

Rugged Tread Pattern For Safe And Attractive Non Slip Surface

Quick Turn Springs 3/4" x

Top quality Edelbrock gaskets ensure a perfect seal every time

Hastings "Tough Guy" Claimer Series Racing Piston Ring Set - Bore Size: 4.155" Top Ring: 1/16", Second Ring: 1/16", Oil Ring: 3/16" - Plasma Moly Top Ring 4386SMLBK 491" ShaftThe COMP Cams philosophyAffordable 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: