What is the purpose of a valve spring seat?

A valve spring seat provides a stable base for the valve spring to rest on within the cylinder head. It ensures the spring is properly positioned and prevents it from shifting, which is important for consistent valve operation.

What does the 1.625 inch measurement refer to?

The 1.625 inch measurement is the inner diameter of the spring cup on the seat. This dimension needs to match the outer diameter of the valve spring you are using to ensure a proper fit.

Is this part compatible with all valve springs?

This valve spring seat is designed with a specific 1.625 inch inner diameter for the spring cup. You must verify that your valve springs have a compatible outer diameter for this seat to function correctly.

Specifications

Brand: Manley Performance
Part #: 42120-16
UPC: 807298043494

Manley Valve Spring Seat, SPRING CUP-ID 1.625

Name: Manley Valve Spring Seat, SPRING CUP-ID 1.625
Brand: Manley Performance
SKU: manley-performance-manley-valve-spring-seat-spring-cup-id-1-625-t14-881558
Price: 112.96 USD
Availability: BackOrder

$112.96

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 valve spring seat. Part# 42120-16. Direct fit.

Key Features

Fits Manley Performance valve spring applications.
Features a 1.625 inch inner diameter for the spring cup.
Well-built component for engine rebuilding and valvetrain upgrades.
Designed to provide stable support for valve springs.
Part number 42120-16.

⚠️ 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 is the Manley Performance valve spring seat, part number 42120-16. It's a well-built component designed to properly support your valve springs. When you're rebuilding an engine or upgrading your valvetrain, ensuring each part is seated correctly is crucial for reliable performance. This spring seat is made to Manley's standards for durability and consistent function.

The spring seat's primary job is to provide a stable base for the valve spring, preventing it from shifting or damaging the cylinder head. This particular seat has a cup inner diameter of 1.625 inches, which is a specific measurement you'll need to match with your valve spring specifications. Using the correct spring seat ensures that the spring operates true and maintains consistent pressure across its lifespan, which is important for proper valve operation and engine health.