Hastings "Tough Guy" Racing File-Fit Piston Ring Set - Bore Size: 4.145" Top Ring: 1/16", Second Ring: 1/16", Oil Ring: 3/16" - Oil Ring Tension: Standard 600080135 Upgraded earlier LS water pumps

Upgraded earlier LS water pumps to the less restritive late model thermostats

Grant is a tier 2 supplier to the automotive original equipment industry and an original equipment supplier to the marine industry

494 in Bore

Designed to replace the often crimped and restrictive OEM pipe that comes off the turbocharger outlet

Black Anodized Finish with a Custom B&M Logo

Hastings "Tough Guy" Racing File-Fit Piston Ring Set - Bore Size: 4.145" Top Ring: 1/16", Second Ring: 1/16", Oil Ring: 3/16" - Oil Ring Tension: Standard 600080135 Upgraded earlier LS water pumpsHastings racing piston rings deliver race winning performance in even the most extreme applications. The low tension, low friction design provides unsurpassed combustion seating and exceptional sealing. Each set includes plasma moly, high tensile cast iron top rings; reverse twist, taper faced cast iron second rings, and choice of standard or low tension Flex Vent stainless steel oil control rings. Low tension oil rings make significant increases in