Hastings "Tough Guy" Racing Standard Piston Ring Set - Bore Size: 4.030" Top Ring: 1/16", Second Ring: 1/16", Oil Ring: 3.0mm - Oil Ring Tension: Standard Digital Dash machined to ultra-high tolerances and

machined to ultra-high tolerances and fully rebuildable

1966-1967 Jeep CJ5A

Designed for 1982-85 2

AiM MyChron 5

Hastings "Tough Guy" Racing Standard Piston Ring Set - Bore Size: 4.030" Top Ring: 1/16", Second Ring: 1/16", Oil Ring: 3.0mm - Oil Ring Tension: Standard Digital Dash machined to ultra-high tolerances andHastings 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