Hastings "Tough Guy" Racing File-Fit Piston Ring Set - Bore Size: 4.060" Top Ring: 1/16", Second Ring: 1/16", Oil Ring: 3/16" - Oil Ring Tension: Low DA0702BF2T54 Chrysler and Big Block Ford

Chrysler and Big Block Ford applications is precision machined from 4140 chromemoly steel and finished in black oxide

offset -21 and the hub bore is 78

Swivel Base

1961-1976 Chevrolet Impala

Hastings "Tough Guy" Racing File-Fit Piston Ring Set - Bore Size: 4.060" Top Ring: 1/16", Second Ring: 1/16", Oil Ring: 3/16" - Oil Ring Tension: Low DA0702BF2T54 Chrysler and Big Block FordHastings 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