Engines and Components› Pistons and Piston Rings

JE Pistons

JE Pistons 427 BBF FLAT TOP Set of 8 Pistons

$924.99

SKU: J001 242934

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Description

High-performance, forged 2618 alloy, flat-top piston set for racing. Includes 8 pistons, wrist pins (990-2930-15-51S), and double spiro locks (990-042-CS). Rings are not included; recommended ringset is J100F8-4280-5. Designed for aftermarket 4.250-inch crankshafts and 6.700-inch connecting rods, not compatible with OEM rods. Sonic checking factory blocks for 4.280-inch and 4.310-inch bores is recommended. Compression ratios are calculated based on a 10.150-inch block height: 12.5:1 (72cc heads), 12.3:1 (74cc heads), and 10.8:1 (88cc heads).

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Specifications

BrandJE Pistons
Part NumberJ001 242934

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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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