JE Pistons 4030-183 Oil Rail Support 4.030" Min Bore 4.059 Max .183 Radial Depth

Oil Rail Support, 4.030 in. Min Bore, 4.059 in. Max Bore, 0.183in. Radial Depth JE Oil Rail Supports feature a special locking detent to prevent rotation of the oil rail and keep the rail support gap 90? from the pin bore opening on the piston. This JE exclusive feature prevents the rail from rotating in the oil ring groove. Oil Rail Supports prevent the oil ring rails from spiraling off of pistons with short compression distances. Special locking detent to prevent rotation of oil rail and keep the rail support gap 90 degrees Prevents the rail from rotating in the oil ring groove