Login for Access to Member Pricing

Manley Performance

Manley Valve Spring, SPRING-1.324 DOUBLE

MPN: 221421-16 Catalog #: 001932537 Category: Valve Springs, Retainers Check Vehicle Fitment

Product Details

Valve Spring - NexTek - Dual Spring - 435 lb/in Spring Rate - 0.900 in Coil Bind - 1.324 in OD - Set of 16

From drag strips to short track and endurance circuits, the Manley NexTek® series is engineered for serious racers. NexTek® springs resist pressure loss and valve-train degradation even in the most demanding race conditions. That means more consistent spring force deep into a run, reduced valve bounce, and improved overall stability for high-RPM performance. Built to outperform and outlast in real-world competition.

Manley Valve Spring, SPRING-1.324 DOUBLE.

Vehicle Fitment

Universal or product-specific fitment. Please review the product details and contact us if you need help confirming fitment before ordering.

Product Specs

Brand
Manley Performance
Part Number
221421-16
Catalog Number
001932537
Product Line
MAN Valve Springs
Category
Engines & Parts
Type
Valve Springs, Retainers
UPC / Barcode
807298082110
Vendor Product Category
Engine Components
Vendor Product Subcategory
Valve Springs, Retainers
Length
15.38 in
Width
3.63 in
Height
3.63 in
Weight
4.00 lb
Units Per SKU
1
Freight / LTL
No
Air Restricted
No
Prop 65
Y
CARB Approved
Yes
Clearance Item
No

Shipping & Availability

Current status 26 Available - Ready to ship
Estimated timing Ships from factory

This item is showing manufacturer availability and may ship directly from the manufacturer. Tracking details are provided as soon as they become available. ETA 0-5 Days to ship.

PROP 65 WARNING: This product can expose you to chemicals, which are known to the State of California to cause cancer or birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Inventory shown: 26 available as of 6/3/2026.

Reviews & Questions

Real product feedback when available, plus quick ways to get fitment or product help.

Ask a Question
Need fitment help? Send us your year, make, model, engine, and the part number.
Already bought it? Reviews help other LMPerformance customers choose the right part.
Product question? We can help with specs, shipping, availability, and install details.

Other Popular Valve Springs, Retainers

$497.09
^