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Engines and Components› Crankshafts and Components

K1 Technologies

Forged Crankshaft, 4.25-inch Stroke

$954.52 $750.00 Save $204.52

SKU: 012-GAG-425

In Stock
In Stock
Ships by Jul 29
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30 Days Return
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Description

The K1 Technologies Forged Crankshaft is designed for Chevrolet Big Block 454 engines with a 4.25-inch stroke. Manufactured from forged 4340 steel, it is engineered for high-stress racing applications. This crankshaft features a nitrided finish for improved strength and bearing life, large fillet radii for enhanced durability, and a straight hole oiling system for optimal lubrication. Tolerances are held to +/- .0001 inches for consistent bearing clearances.

Fitment

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Specifications

BrandK1 Technologies
Part Number012-GAG-425
CategoryEngines and Components

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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