JE Pistons asymmetrical FSR (Forged Side Relief) piston line incorporates modern forging design with a larger skirt on the major thrust side and smaller, friction-reducing skirt on the minor thrust side. Combined with precision CNC machining, the result is a high-strength, lightweight piston that is extremely durable. JE, Chevrolet, LS Gen III/IV, 4.030 in. Bore, 1.065 CD, Flat Top, 8 Cyl. Piston Kit Chevrolet LS Stroker
