What is a gapless top piston ring?

A gapless top piston ring has a unique design where the ends meet without a gap. This prevents combustion gases from escaping past the top ring, leading to more consistent cylinder pressure and improved engine performance.

What does the sizing 4.070in/4.075in refer to?

This sizing indicates the range of cylinder bore diameters the rings are designed to fit. The rings are intended for bores that measure between 4.070 inches and 4.075 inches.

Are these rings compatible with all pistons?

These rings are designed for specific piston groove dimensions (1.5mm top ring, 3.0mm second ring). You should verify that your pistons have the correct groove dimensions to accept these rings before purchasing.

Manley Piston Ring Set 4.070in/4.075in 46117GT-8

Name: Manley Ring Set 4.070in/4.075in / 1.5mm Thick / 3.0mm - Set of 8
Brand: Manley Performance
SKU: manley-performance-manley-ring-set-4-070in-4-075in-1-5mm-thick-3-0mm-set-of-8-t14-547128
Price: 666.12 USD
Availability: BackOrder

Manley Ring Set 4.070in/4.075in / 1.5mm Thick / 3.0mm - Set of 8

$666.12

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 gapless top piston ring set for 4.070-4.075 inch bores. Not CARB approved.

Key Features

Fits 4.070 to 4.075 inch bore sizes.
Gapless top ring design for improved cylinder sealing.
Top ring thickness is 1.5mm.
Second ring thickness is 3.0mm.
Set includes rings for 8 cylinders.
Manley Performance is known for durable engine components.

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Product Details

Manley Performance is well-known for making strong internal engine components, and this gapless top piston ring set is a prime example of their focus on performance. Designed for a 4.070 to 4.075 inch bore, these rings are built to seal tightly and handle the demands of a high-performance engine build. The gapless top ring design means there's no gap for combustion pressure to escape, which helps maintain consistent cylinder pressure and improved power output.

This set includes rings with a 1.5mm thick top ring and a 3.0mm second ring, specifically chosen for their ability to create a solid seal. The gapless design is a notable feature that sets these rings apart, offering a more efficient combustion chamber compared to traditional stepped-gap rings. This attention to detail in sealing is crucial for maximizing engine efficiency and durability, especially in applications where every bit of performance counts. You'll want to ensure your pistons are compatible with these ring dimensions before installation.

When rebuilding or modifying an engine, the piston rings are a critical component for proper cylinder sealing and oil control. This Manley set is a solid option for builders looking for a gapless top ring solution. Please note that these rings are not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper fitment and assembly procedures.