Hastings "Tough Guy" Racing File-Fit Piston Ring Set - Bore Size: 4.030" Top Ring: 1/16", Second Ring: 1/16", Oil Ring: 3.0mm - Oil Ring Tension: Standard BR40004 2006-2007 Chevrolet Express 2500

2006-2007 Chevrolet Express 2500

1972-1973 Jeep Commando

These BBK Performance shortly tuned Length exhaust Headers are designed and constructed as direct fit replacements for all 2005-10 6

With slots for rockers

Hastings "Tough Guy" Racing File-Fit Piston Ring Set - Bore Size: 4.030" Top Ring: 1/16", Second Ring: 1/16", Oil Ring: 3.0mm - Oil Ring Tension: Standard BR40004 2006-2007 Chevrolet Express 2500Hastings 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