Hastings "Tough Guy" Claimer Series Racing Piston Ring Set - Bore Size: 4.030" Top Ring: 1/16", Second Ring: 1/16", Oil Ring: 3/16" - Plasma Moly Top Ring MAC-4P-KIT 2-piece tube clamp bolts to

2-piece tube clamp bolts to round tubing and provides a removable welding point for many uses

1982-1998 GMC C2500

1972-1974 Dodge W200 Pickup

road contaminants

Ford EcoBoost

Hastings "Tough Guy" Claimer Series Racing Piston Ring Set - Bore Size: 4.030" Top Ring: 1/16", Second Ring: 1/16", Oil Ring: 3/16" - Plasma Moly Top Ring MAC-4P-KIT 2-piece tube clamp bolts toAffordable 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: