What does '.005 undersize' mean for this crank hub?

This means the hub is manufactured to be five-thousandths of an inch smaller in diameter than a standard size. It's intended for use on a crankshaft that has been machined down by the same amount during an engine rebuild to ensure a precise fit.

What material is this crank hub made from?

This crank hub is made from steel, which is chosen for its strength and durability in engine applications.

Is this crank hub a direct replacement for all LS1 engines?

This crank hub is designed for LS1 engines and features a .005 inch undersize. It's important to verify that your specific engine build or crankshaft machining requires this particular size for a direct fit.

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Specifications

Brand: ATI
Part #: ATI916045U
UPC: 800157022654

ATI Crank Hub - Steel - LS1 Undersize .005

Name: ATI Crank Hub - Steel - LS1 Undersize .005
Brand: ATI
SKU: ati-ati-crank-hub-steel-ls1-undersize-005-t14-360627
Price: 129.55 USD
Availability: BackOrder

$129.55

On Backorder

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

ATI steel crank hub, .005 undersize for LS1 engines.

Key Features

Steel construction for durability.
Designed for LS1 engines.
Features a .005 inch undersize for specific crankshaft machining.
Direct fit replacement part.

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About this part

Product Details

ATI is known for making strong, reliable performance parts, and this steel crank hub is no different. If you're working on an LS1 engine and need to replace or upgrade your crankshaft hub, this part is built to last. It's made from steel, which offers good durability for engine components.

This particular hub is .005 inch undersize. This means it's designed to fit a crankshaft that has been machined down by five-thousandths of an inch, often done during an engine rebuild to ensure a precise fit. Using the correct undersize hub is important for proper bearing function and overall engine health.