What is the main purpose of a crankshaft pulley or harmonic balancer?

A crankshaft pulley, often called a harmonic balancer, helps to reduce torsional vibrations from the engine's crankshaft. It also provides a mounting point for accessory belts that drive components like the alternator and power steering pump.

What does the '6 Grv' and '3 Ring' refer to on this pulley?

The '6 Grv' indicates that the pulley has six grooves for accessory belts, allowing you to run multiple belts for different components. The '3 Ring' refers to a specific configuration for Chevy 3-bolt crankshaft applications, ensuring proper mounting and alignment.

Is this pulley suitable for high-performance or racing applications?

Yes, ATI is a well-known brand for performance engine components. This steel, lightweight pulley is designed to handle the stresses of performance engines and help manage vibrations.

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Specifications

Brand: ATI
Part #: ATI917015
UPC: 800157064425

ATI Shell Assy - 7.425 - Steel LW - 6 Grv - Chevy 3-Bolt - 3 Ring

Name: ATI Shell Assy - 7.425 - Steel LW - 6 Grv - Chevy 3-Bolt - 3 Ring
Brand: ATI
SKU: ati-ati-shell-assy-7-425-steel-lw-6-grv-chevy-3-bolt-3-ring-t14-361146
Price: 403.88 USD
Availability: BackOrder

$403.88

On Backorder

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

ATI Shell Assy - 7.425 - Steel LW - 6 Grv - Chevy 3-Bolt - 3 Ring. This steel crankshaft pulley is built for Chevy 3-bolt engines.

Key Features

Fits Chevy engines with a 3-bolt crankshaft.
Features a 7.425-inch diameter.
Includes 6 grooves for accessory belts.
Constructed from durable steel with a lightweight design.
Designed to reduce crankshaft torsional vibrations.

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About this part

Product Details

If you're working on a Chevy engine with a 3-bolt crankshaft, this ATI Shell Assy is a solid choice for replacing your harmonic balancer. It's designed to handle the demands of performance engines, helping to keep your crankshaft running smoothly and reducing torsional vibrations. This particular model features a 7.425-inch diameter and a 6-groove pulley system, offering ample belt surface for accessories.

ATI is known for making well-built performance parts, and this pulley is no exception. It's constructed from steel for durability and features a lightweight (LW) design to reduce rotational mass. The 3-ring setup is specific to certain Chevy 3-bolt applications, ensuring a proper fit and function for your build. This pulley is a critical component for engine longevity and performance, especially when you're pushing your engine harder than stock.