Engines and Components› Crankshafts and Components

Brian Tooley Racing

LS Forged Crankshaft 4.0 STRK w/58X Reluctor

$954.99

SKU: B07O BTRCRA4000F158

In Stock
In Stock
Ships by Jun 10
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Advanced — 4+ hours

Description

The BTR Forged Crankshaft is a premium, 4340 forged steel crankshaft designed for serious street and race LS engines. It is core-hardened using nitride for improved strength and bearing life, with size tolerances held to +/-.0002". This crankshaft is available with a 4.000" stroke and is compatible with 58-tooth reluctor wheels.

Fitment

Fitment Guaranteed

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Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

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Specifications

BrandBrian Tooley Racing
Part NumberB07O BTRCRA4000F158

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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