What material is this crank hub and inner shell made from?

This crank hub and inner shell is constructed from steel, offering a strong and durable option for your engine build.

What is the keyway configuration on this part?

The component features a 1/4 inch keyway. This keyway is specifically positioned 180 degrees from the standard timing marks.

What type of engine is this part designed for?

This crank hub and inner shell is designed for Chevrolet Big Block (BB) engines.

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Est. 1957

Specifications

Brand: ATI
Part #: ATI916890K
UPC: 800157023682

ATI Crank Hub & Inner Shell - Steel - Chevy BB w/1/4 Keyway at 180 From STD

Name: ATI Crank Hub & Inner Shell - Steel - Chevy BB w/1/4 Keyway at 180 From STD
Brand: ATI
SKU: ati-ati-crank-hub-inner-shell-steel-chevy-bb-w-1-4-keyway-at-180-from-std-t14-361075
Price: 148.36 USD
Availability: BackOrder

$148.36

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

ATI Crank Hub & Inner Shell for Chevy BB. Steel construction with 1/4 keyway at 180 from STD.

Key Features

Fits Chevy Big Block engines.
Steel construction for durability.
Features a 1/4 inch keyway.
Keyway is positioned 180 degrees from standard timing marks.

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About this part

Product Details

ATI is well-known for making robust performance parts, and this Crank Hub & Inner Shell is no exception. This steel component is designed for Chevy Big Block engines and features a 1/4 inch keyway positioned 180 degrees from standard timing marks. It's a solid piece for anyone working on the crankshaft assembly of their engine.

Crafted from durable steel, this hub and inner shell combination is built to handle the stresses of a performance engine. The specific keyway placement is important for certain engine builds, ensuring proper timing and component alignment. If you're rebuilding or modifying your Chevy BB's front end, this part offers a well-built solution for your needs.