Hastings "Tough Guy" Racing File-Fit Piston Ring Set - Bore Size: 4.185" Top Ring: 1/16", Second Ring: 1/16", Oil Ring: 3/16" - Oil Ring Tension: Standard EZTS101BK Smooth Internal Passages for Superior

Smooth Internal Passages for Superior Oil Flow

This installation kit will fit #RJS50523 series Window Nets

dual 1 core for maximum cooling and extended durability

6L80 / 6L90 Transmissions

Hastings "Tough Guy" Racing File-Fit Piston Ring Set - Bore Size: 4.185" Top Ring: 1/16", Second Ring: 1/16", Oil Ring: 3/16" - Oil Ring Tension: Standard EZTS101BK Smooth Internal Passages for SuperiorHastings 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