What is an externally balanced engine?

An externally balanced engine uses counterweights attached to the crankshaft or flywheel to achieve balance, rather than relying solely on the internal design of the crankshaft. This assembly is specifically for those types of setups.

Does this come with the outer harmonic balancer?

This part number includes the crank hub, inner shell, and the necessary weight for external balance applications. The outer harmonic balancer is typically a separate component.

What is the benefit of using an ATI crank hub assembly?

ATI is known for well-built engine components. This assembly helps ensure proper balance and reduces stress on the crankshaft in externally balanced Chevy 400 SB engines, contributing to overall engine reliability.

Specifications

Brand: ATI
Part #: ATI916071-2
UPC: 800157023873

ATI Crank Hub & Inner Shell w/Wgt - Chevy 400 SB - Ext Bal

Name: ATI Crank Hub & Inner Shell w/Wgt - Chevy 400 SB - Ext Bal
Brand: ATI
SKU: ati-ati-crank-hub-inner-shell-w-wgt-chevy-400-sb-ext-bal-t14-360649
Price: 202.75 USD
Availability: BackOrder

$202.75

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 w/Wgt for Chevy 400 SB (Ext Bal). A well-built component for your engine's crankshaft.

Key Features

Fits Chevy 400 small-block engines with external balance.
Includes crank hub, inner shell, and a crucial counterweight.
Designed to work with the factory crankshaft.
Helps manage crankshaft rotational forces and reduce engine vibration.
Well-built from durable materials for engine longevity.

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About this part

Product Details

This ATI crank hub and inner shell assembly is built for Chevy 400 small-block engines that use an external balance configuration. It's designed to work with the factory crankshaft, providing a solid connection point for your harmonic balancer. The included weight is crucial for maintaining proper engine balance in externally balanced applications, helping to reduce vibrations and ensure smoother operation.

ATI is known for making well-built performance engine components, and this assembly is no exception. It's constructed from durable materials to withstand the rigors of engine operation. Proper installation of this part is key to its function, ensuring that the crankshaft's rotational forces are managed effectively. This component is a popular choice for builders looking to ensure the reliability of their engine's rotating assembly.