Wiseco Chevy Big Block 4.625in Bore 1.270in CH 38.00 CC Piston Set

Name: Wiseco Chevy Big Block 4.625in Bore 1.270in CH 38.00 CC Piston Set
Brand: Wiseco
SKU: W00C K426B125
Price: 1161.99 USD
Availability: InStock

$1,161.99

SKU: W00C K426B125

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Description

The Wiseco K426B125 is a forged 2618 aluminum piston set designed for Chevrolet Big Block 540 cubic inch (BB Chevy 540) engines. These pistons feature a 4.625-inch bore size, a compression height of 1.270 inches, and a 0.990-inch pin diameter. With a +38.0cc hollow dome, they are engineered to achieve a 13.2:1 compression ratio when used with a 119cc chamber, a .040-inch gasket, and zero deck clearance. The piston set is compatible with a 4.250-inch crankshaft stroke and 6.385-inch rod length. Each piston weighs 684 grams and utilizes .043, 1/16, 3/16 piston rings (sold separately).

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Specifications

Brand	Wiseco
Part Number	W00C K426B125

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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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