What is the purpose of a valve spring seat?

A valve spring seat sits at the base of the valve spring, providing a stable and flat surface for the spring to rest on. This ensures proper alignment and consistent pressure, which is vital for the valve train's operation and longevity.

What does SPRING CUP-ID 1.550 mean?

The SPRING CUP-ID 1.550 refers to the inner diameter of the cup where the valve spring sits. This specific measurement ensures compatibility with valve springs designed for this size.

Are these valve spring seats sold individually or as a set?

The product listing indicates part number 42378-16, which typically refers to a set of 16 pieces, suitable for most V8 engines. Always verify the quantity included in the package before purchase.

Specifications

Brand: Manley Performance
Part #: 42378-16
UPC: 807298044101

Manley Valve Spring Seat, SPRING CUP-ID 1.550

Name: Manley Valve Spring Seat, SPRING CUP-ID 1.550
Brand: Manley Performance
SKU: manley-performance-manley-valve-spring-seat-spring-cup-id-1-550-t14-881648
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 seats. Part# 42378-16. These seats ensure proper valve spring alignment.

Key Features

Fits Manley Performance valve spring seats.
Part number 42378-16.
Features a SPRING CUP-ID of 1.550 inches.
Designed to provide a stable base for valve springs.
Helps ensure proper valve spring alignment and pressure.
Constructed from durable materials for longevity.

⚠️ 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

Manley Performance valve spring seats are a key component for rebuilding or upgrading your engine's valvetrain. These are the SPRING CUP-ID 1.550 size, designed to sit at the base of the valve spring, providing a stable platform for the spring to rest on. Proper seating is crucial for consistent valve spring pressure and preventing damage to the cylinder head or spring itself.

Crafted by Manley Performance, a well-known name in performance engine parts, these spring seats are built to handle the demands of performance applications. They are made from durable materials to ensure they hold up under repeated stress and heat cycles. Ensuring the valve spring is correctly seated helps maintain the intended valve lift and timing, which is important for overall engine performance and reliability.

When you're working on your engine's top end, using well-made components like these Manley valve spring seats can make a difference in the longevity and performance of your build. Always refer to your specific engine's service manual for installation procedures and any required hardware.