What is the purpose of a crank hub and inner shell?

The crank hub and inner shell are components of the harmonic balancer system. They work together to absorb and dampen torsional vibrations that occur in the crankshaft during engine operation, helping to protect the engine's rotating assembly.

What does 'external balance' mean for this part?

External balance refers to the engine's crankshaft counterweights being located on the crankshaft itself, rather than integrated into the flywheel or flexplate. This ATI hub and shell is designed to work with that specific balancing configuration for the Chevy 400 small block.

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

This ATI crank hub and inner shell assembly is constructed from steel, offering a strong and durable component for your engine.

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Specifications

Brand: ATI
Part #: ATI916070-2
UPC: 800157023613

ATI Crank Hub & Inner Shell - Steel - Chevy 400 SB - Ext Bal

Name: ATI Crank Hub & Inner Shell - Steel - Chevy 400 SB - Ext Bal
Brand: ATI
SKU: ati-ati-crank-hub-inner-shell-steel-chevy-400-sb-ext-bal-t14-360647
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 400 SB. Steel construction, external balance.

Key Features

Fits Chevy 400 SB engines with external balance.
Steel construction for durability.
Part of the harmonic balancer system.
Helps manage crankshaft torsional vibrations.

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About this part

Product Details

This is the ATI Crank Hub and Inner Shell assembly, made from steel for your Chevy 400 small block engine with external balance. It's a key part of your engine's harmonic balancer system, designed to help manage torsional vibrations from the crankshaft.

Keeping these vibrations in check is important for the longevity of your engine's rotating assembly. This steel hub and shell is a well-built component that works with your existing or aftermarket harmonic balancer to provide reliable performance. It's specifically made for the Chevy 400 small block, which has unique balancing requirements.