What is the purpose of these groove lock spacers?

These spacers are used during engine rebuilding to ensure the piston ring grooves are the correct size. This is important for proper ring seal, which affects engine performance and longevity.

How many spacers are included in this set?

This set includes eight groove lock spacers, which is typically enough for a full set of pistons in a V8 engine.

Can these spacers be used with any piston ring size?

No, these specific spacers are designed for pistons with a 3mm oil ring width and are intended for bores ranging from 4.090 inches to 4.100 inches.

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Specifications

Brand: Manley Performance
Part #: 462490-8
UPC: 807298090276

Manley Groove Lock Spacers 4.090in to 4.100in Bore 3mm Oil Ring Width (Set of 8)

Name: Manley Groove Lock Spacers 4.090in to 4.100in Bore 3mm Oil Ring Width (Set of 8)
Brand: Manley Performance
SKU: manley-performance-manley-groove-lock-spacers-4-090in-to-4-100in-bore-3mm-oil-ri-t14-426828
Price: 41.45 USD
Availability: BackOrder

$41.45

On Backorder

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

Manley Performance piston ring spacers for engine builds. Set of 8, fits 4.090in to 4.100in bore with 3mm oil ring width.

Key Features

Set of 8 piston ring spacers from Manley Performance.
Designed for a 4.090-inch to 4.100-inch bore.
Accommodates a 3mm oil ring width.
Helps achieve precise piston ring groove dimensions for proper sealing.

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About this part

Product Details

When you're rebuilding the top end of your engine and need to ensure your pistons are set up just right, these Manley Groove Lock Spacers are a solid choice. They're designed to help you achieve the correct piston ring groove dimensions, which is critical for proper sealing and engine performance. Getting this detail right means your engine will run smoother and last longer.

Manley has built a reputation for making well-built internal engine components, and these spacers are no exception. They're made to precise specifications, ensuring they'll fit correctly in the piston groove. This set includes eight spacers, enough for a full set of pistons in most V8 engines, and they're specifically sized for a 4.090-inch to 4.100-inch bore with a 3mm oil ring width. This attention to detail is what separates a good rebuild from a great one.