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JE Forged Pistons 4.065in. Bore


JE Forged Pistons 4.065in. Bore


JE Pistons Part#:290665

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Bore Size: 4.065

Oversize: STD LS3

Dome Volume: -29.0

Weight: 403

Material: Forged aluminum

Piston Type: Dish with two valve reliefs

JE Pistons' newest FSR slipper forging design allows for the use of the most popular stroke and rod combinations while eliminating reluctor wheel clearance problems. These pistons are lightweight and extremely durable. They're machined for 1.5, 1.5, 3.0mm rings and have an inverted dome design to achieve an optimum compression ratio with forced induction applications.