Hastings "Tough Guy" Claimer Series Racing Piston Ring Set - Bore Size: 4.030" Top Ring: 1/16", Second Ring: 1/16", Oil Ring: 1/8" - Plasma Moly Top Ring R07C15YL 65 mm Long

65 mm Long

700 Length

Ideal for installing single springs on GM Vortec head

Like all Flowmaster products the benefits include improved throttle response

durable material as the BedRug liner

Hastings "Tough Guy" Claimer Series Racing Piston Ring Set - Bore Size: 4.030" Top Ring: 1/16", Second Ring: 1/16", Oil Ring: 1/8" - Plasma Moly Top Ring R07C15YL 65 mm LongAffordable 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: