Hastings "Tough Guy" Racing File-Fit Piston Ring Set - Bore Size: 4.030" Top Ring: 1/16", Second Ring: 1/16", Oil Ring: 3/16" - Oil Ring Tension: Standard Turbo Cooler Manifold Exhaust - 2001-2010 Duramax

Exhaust - 2001-2010 Duramax

Small-block Chevy

Offers front and side impact protection

Impacts full line of helmets feature an interchangeable cheek pad for a customized and perfect fit

Hastings "Tough Guy" Racing File-Fit Piston Ring Set - Bore Size: 4.030" Top Ring: 1/16", Second Ring: 1/16", Oil Ring: 3/16" - Oil Ring Tension: Standard Turbo Cooler Manifold Exhaust - 2001-2010 DuramaxHastings 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