JE Pistons Premium Race Series Piston Rings - 4.390 in Bore - File Fit - 8-Cylinder PROR-696-G1-HK Silicone insulation and boots withstand

Silicone insulation and boots withstand high temperatures and voltage loss for minimum cross-fire and are highly resistant to fuels

Up to 700 RWHP

22 in W x 19 in H x 2

including fuel pressure

JE Pistons Premium Race Series Piston Rings - 4.390 in Bore - File Fit - 8-Cylinder PROR-696-G1-HK Silicone insulation and boots withstandJE 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