Hastings "Tough Guy" Racing File-Fit Piston Ring Set - Bore Size: 4.000" Top Ring: 1/16", Second Ring: 1/16", Oil Ring: 3/16" - Oil Ring Tension: Standard Fuel Rail Single Adjustable

Single Adjustable

Steel body coil-over eliminator is designed for use with 5” springs and features a removeable spring cup for easy spring changes

and Voltmeter)

Micropolished journals feature 2 RA or better

Designed to work with any EFI fuel system

Hastings "Tough Guy" Racing File-Fit Piston Ring Set - Bore Size: 4.000" Top Ring: 1/16", Second Ring: 1/16", Oil Ring: 3/16" - Oil Ring Tension: Standard Fuel Rail Single AdjustableHastings 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