What is the purpose of the different keyways on the crankshaft sprocket?

The three keyways on the crankshaft sprocket allow for precise adjustment of your engine's timing. You can set it at -4 degrees, 0 degrees (stock timing), or +4 degrees to fine-tune performance based on your engine's build.

What is the function of the Torrington thrust bearing or brass wear shim?

The Torrington thrust bearing or brass wear shim is integrated into the camshaft sprocket to manage axial (side-to-side) movement. This helps ensure the timing chain stays properly aligned and reduces wear on the components.

What does the 'roller chain' design mean for this kit?

A roller chain, like the one in this kit with .250-inch diameter rollers, is generally more durable and can handle higher loads compared to a silent or link-style chain. It provides a strong and reliable connection between the crankshaft and camshaft.

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Specifications

Brand: Manley Performance
Part #: 73161
UPC: 807298016283

Manley Race Roller Timing Chain Kit - Small Block Chevrolet - Shim

Name: Manley Race Roller Timing Chain Kit - Small Block Chevrolet - Shim
Brand: Manley Performance
SKU: manley-performance-manley-race-roller-timing-chain-kit-small-block-chevrolet-shi-t14-881745
Price: 125.22 USD
Availability: BackOrder

$125.22

On Backorder

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

Manley Race Roller Timing Chain Kit for Small Block Chevrolet. Features a machined steel crank sprocket and roller chain.

Key Features

Fits Small Block Chevrolet engines.
Machined steel crankshaft sprocket includes three keyways for -4, 0, or +4 degrees of timing adjustment.
Cast camshaft sprocket features a Torrington thrust bearing or brass wear shim.
Roller chain utilizes .250-inch diameter rollers for durability.
Chevrolet kits include a brass wear shim or a captive Torrington bearing.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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About this part

Product Details

This Manley Race Roller Timing Chain Kit for Small Block Chevrolet engines starts with a fully machined steel crankshaft sprocket. This sprocket has three keyways, letting you adjust your timing by -4, 0, or +4 degrees, which is handy if you're fine-tuning your engine's performance. The camshaft sprocket is cast and comes with a Torrington thrust bearing or a brass wear shim, depending on the specific kit, to manage side-to-side movement.

The roller chain itself is built with .250-inch diameter rollers, offering a strong and reliable connection between the crank and cam. For Chevrolet kits like this one, Manley includes a brass wear shim or a captive Torrington bearing to ensure smooth operation and longevity. This kit is a solid option for anyone rebuilding or upgrading their Small Block Chevy's timing components.