JE Pistons Oil Rail Support, 3.999 in. Min Bore, 4.029 in. Max Bore, 0.162in. Radial Depth - 4000-162
Piston Oil Rail Support, 3.999 in. Min Bore, 4.029 in. Max Bore, 0.162in. Radial Depth, Each.
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.
JE pistons are all designed, forged, and machined in-house, allowing control over every step of the piston-making process. JE Pistons 7+ decades of experience in high-level racing has led to offering premium racing features, including full billet construction, EN plating, and purpose-designed coatings, to name a few.
