Hastings "Tough Guy" Racing File-Fit Piston Ring Set - Bore Size: 4.125" Top Ring: 5/64", Second Ring: 5/64", Oil Ring: 3/16" - Oil Ring Tension: Standard Weld-On Bung and Plug 1977-1987 Ford E-250 Econoline Club

1977-1987 Ford E-250 Econoline Club Wagon

The Centerforce SST (Solid Street Twin) 10

All aluminum construction

1992-1994 GMC C1500 Suburban

GM Fullsize Truck 2020-24

Hastings "Tough Guy" Racing File-Fit Piston Ring Set - Bore Size: 4.125" Top Ring: 5/64", Second Ring: 5/64", Oil Ring: 3/16" - Oil Ring Tension: Standard Weld-On Bung and Plug 1977-1987 Ford E-250 Econoline ClubHastings 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