What does 'file fit' mean for these piston rings?

File fit means that the ends of the second compression ring are not pre-gapped. You will need to file them down to achieve the correct end gap for your specific cylinder bore size. This allows for a more precise fit in custom engine builds.

Can these rings be used in any LS engine?

These rings are specifically designed for LS engines with a 4.020 inch bore. It's important to verify your engine's bore size before purchasing to ensure proper fitment and performance.

Specifications

Brand: Manley Performance
Part #: 46112ST-8
UPC: 807298071855

Manley Chevy LS 4.020in Bore File Fit Premium Piston Ring Set

Name: Manley Chevy LS 4.020in Bore File Fit Premium Piston Ring Set
Brand: Manley Performance
SKU: manley-performance-manley-chevy-ls-4-020in-bore-file-fit-premium-piston-ring-set-t14-4326860
Price: 451.39 USD
Availability: BackOrder

$451.39

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

Manley Chevy LS 4.020in Bore File Fit Premium Piston Ring Set. These piston rings are designed for LS engine builds with a 4.020 inch bore.

Key Features

Fits Chevy LS engines with a 4.020 inch bore.
File fit design allows for custom end gap setting.
Well-built by Manley Performance for engine builds.
Not CARB approved; cannot ship to California.

⚠️ 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

If you're building or rebuilding a Chevy LS engine and need a precise fit for your pistons, this Manley Performance file fit piston ring set is a solid option. Designed specifically for a 4.020 inch bore, these rings allow for custom gap setting to match your engine's specific needs, which is crucial for optimal performance and sealing in high-performance applications.

Manley is known for well-built engine components, and this ring set is no exception. The 'file fit' designation means you'll need to file the ends of the second compression ring to achieve the correct end gap for your cylinder bore. This level of adjustability is important for builders who are aiming for maximum power and reliability, ensuring proper ring seal under various operating conditions. This set is intended for serious engine builds where attention to detail makes a difference.

Keep in mind that these rings are not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper gapping and installation procedures to ensure the best results for your engine.