Hastings "Tough Guy" Claimer Series Racing Piston Ring Set - Bore Size: 4.165" Top Ring: 1/16", Second Ring: 1/16", Oil Ring: 3/16" - Plasma Moly Top Ring RG30003 Stops the transfer of heat

Stops the transfer of heat from the engine to the fuel system

Recessed bolt pockets and tall design to clear most aftermarket valvetrains

1977-1979 Chevrolet K30

75 in Wheel Bolt Pattern

Increase Vehicle Height/Enhances Performance

Hastings "Tough Guy" Claimer Series Racing Piston Ring Set - Bore Size: 4.165" Top Ring: 1/16", Second Ring: 1/16", Oil Ring: 3/16" - Plasma Moly Top Ring RG30003 Stops the transfer of heatAffordable 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: