JE Pistons Piston Rings - 4.125 in Bore - File Fit - 1/16 in x 1/16 in x 3/16 in Thick - 8-Cylinder YA0854 Supports up to 550 EFI

Supports up to 550 EFI or 700 Carb HP (HP Rating @ 60 PSI at 13

Other bushings are available for unlimited tuning options

#35740/#35750 manifold height: 7

1995-1995 Oldsmobile Aurora

JE Pistons Piston Rings - 4.125 in Bore - File Fit - 1/16 in x 1/16 in x 3/16 in Thick - 8-Cylinder YA0854 Supports up to 550 EFIJE Piston Rings are designed to maximize horsepower through precision sealing of combustion pressure. They are offered in a huge selection of sizes, various materials, and in multiple thicknesses to suit a wide variety of engines. JE Pistons also offers an array of custom piston ring services including back cutting, dyke cutting, lapping, grinding, and PVD coating. These services, the same used by top NHRA Pro Stock and NASCAR teams, are now available