Manley Performance · New
Manley Valve Spring Seat, SPRING CUP-ID 1.677
MPN 42364-16 · Store SKU man42364-16
Supplier stock checked 11/7/2026, 11:40:43 PM UTC. Adding a part does not reserve it.
Request a return within 30 calendar days after delivery. New parts must be unopened and unused.
Shipping & returns ↗This policy does not limit rights required by law.Free standard shipping on eligible parts orders of $100 or more. Oversized and freight items excluded. Fitment, taxes, availability and final totals are confirmed before payment.
Product details
Manley Performance Valve Spring Cups provide a precision-machined, durable foundation for valve springs while protecting the cylinder head from spring wear. Manufactured from premium materials and held to exacting tolerances, they help maintain proper spring alignment for reliable valvetrain performance in both street and racing applications. Manley Valve Spring Seat, ring Cup - ID 1.677 Manley Valve Spring Seat, SPRING CUP-ID 1.677
Manufacturer fitment & guides
Check 42364-16 against the manufacturer’s application information below.
A manufacturer application guide is not available for this listing. Request the exact application from JuiceBuilt before payment.
Part-specific notes
- California Proposition 65: Y