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 I Beam Connecting Rod shot-peened to remove stress risers

shot-peened to remove stress risers and double magnafluxed after heat-treating and thread-forming to assure 100% metallurgical integrity

Bell / G-Force / Pyrotect Helmets

BBK under drive pulley kits are vehicle specific and each kit comes with complete installation instructions and allow the re-use of existing serpentine belts

Shoulders Adjust from 15" to 40"

Chevrolet: LCF 4500 20 - 21 6

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 I Beam Connecting Rod shot-peened to remove stress risersHastings 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