Engines and Components› Crankshafts and Components

Lunati

4.000-inch Stroke Forged Crankshaft, 4340 Steel

$1,792.95

SKU: 60140001

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In Stock
Ships by Jul 31
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Description

Manufactured from 4340 non-twist steel forgings that meet aircraft-quality standards, this crankshaft is built to withstand the demands of racing and high-output engines. This crankshaft features a 4.000-inch stroke, an internal balance, and a 2-piece rear main seal style. The main journal diameter is 2.448 inches, and the rod journal diameter is 2.100 inches, with a balancer bolt thread size of 7/16 in.-20. All Lunati crankshafts require the use of narrow or chamfered main and rod bearings.

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Specifications

BrandLunati
Part Number60140001
CategoryEngines and Components

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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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