What is the main purpose of a valve spring seat?

A valve spring seat's primary job is to provide a stable base for the valve spring. It ensures the spring is correctly positioned and exerts consistent pressure against the cylinder head, which is vital for proper valve operation.

What does the 1.625 inch measurement refer to?

The 1.625 inch measurement is the inner diameter of the valve spring seat. This dimension is important for ensuring a proper fit with the specific valve spring you are using in your engine build.

Are these seats sold individually or as a set?

This listing is for a single Manley Performance valve spring seat, part number 42318-16. You will need to purchase the correct quantity for your engine's cylinder heads.

Specifications

Brand: Manley Performance
Part #: 42318-16
UPC: 807298043630

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-t14-881621
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# 42318-16. Direct fit.

Key Features

Manley Performance valve spring seat, part number 42318-16.
Designed to properly support the valve spring.
Ensures the valve spring sits flush against the cylinder head.
Inner diameter measures 1.625 inches.
Made by Manley Performance, a well-known name in engine components.

⚠️ 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 42318-16. It's a critical component for your engine's valvetrain, specifically designed to support the valve spring and ensure it sits correctly against the cylinder head. Proper seating is essential for the valve spring to function as intended, maintaining consistent pressure and allowing your valves to open and close reliably.

Manley Performance is known for making well-built engine components, and this spring seat is no exception. It's constructed to handle the pressures and temperatures found within the engine. The spring seat's inner diameter is 1.625 inches, which is a key measurement to ensure it mates properly with the specific valve spring you are using. Getting this right means your valvetrain will operate smoothly and efficiently.

When you're rebuilding or upgrading your engine's top end, using the correct spring seats is part of ensuring a solid foundation for performance and reliability. Make sure to confirm this part's specifications match your valve springs and cylinder head requirements.