Manley Performance
Manley Pro Stock / Fuel / Alcohol NexTek Series Drag Race Valve Springs
SKU: M004 221450-16
Description
Part #: 221450-16
From drag strips to short track and endurance circuits, the Manley NexTek (R) series is engineered for serious racers. NexTek (R) 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-1.677 TRIPLE.
This product may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
Fitment
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Available on iOS & Android
Specifications
| Brand | Manley Performance |
| Part Number | M004 221450-16 |
Videos
Manley Performance Factory Tour - Pistons, Connecting Rods, Valvetrain Manufacturing | RS Garage
Matt Hartford shows you how to change valve springs on a Pro Stock car
Pro Stock Valve Secrets.....At $1000 Bucks A Piece
Valve Springs: How to Choose, Set Up & Install Them Right (For Your BUILD!)
Understand THIS Before Buying Valve Springs | Valvetrain Terminology 101 - Jays Tech Tip
Buy with Confidence
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
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