Engines and Components› Pistons and Piston Rings

JE Pistons

BBC FSR DOME GP 40CC

$252.49

SKU: J001 330123S

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Description

The JE Pistons 330123S is a set of forged dome pistons designed for circle track and drag racing applications. These pistons are up to 100 grams lighter than traditional full round pistons, offering increased strength and durability due to their FEA-designed forging. They feature deeper valve pockets to accommodate higher lift cams and milled cylinder heads.

Accepting a .043/.043/3.0mm ring package, these pistons have a dome configuration suitable for most popular open chamber cylinder heads. The set includes pin, wire locks, lateral gas ports, accumulator grooves, and contact reduction grooves.

Fitment

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Specifications

BrandJE Pistons
Part NumberJ001 330123S

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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