Hastings "Tough Guy" Racing File-Fit Piston Ring Set - Bore Size: 4.125" Top Ring: 1/16", Second Ring: 1/16", Oil Ring: 3/16" - Oil Ring Tension: Low H768D03XL - 10 Spline X 1

- 10 Spline X 1 1/16 in

to 4 G cornering loads in Indy this design holds the internals firmly in place

6 AN Hose to 9/16-18 in Male

Cold Air Intake / Throttle Body / Adapter / Calibration Tool / Hardware

Available in: Red netting with Black

Hastings "Tough Guy" Racing File-Fit Piston Ring Set - Bore Size: 4.125" Top Ring: 1/16", Second Ring: 1/16", Oil Ring: 3/16" - Oil Ring Tension: Low H768D03XL - 10 Spline X 1Hastings 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