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Engines and Components› Camshafts and Valvetrain

Manley Performance

1.610 NexTek Dual Valve Springs

$587.82 $529.04 Save $58.78

SKU: M004 221444-16

In Stock
In Stock
Ships by Aug 5
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

Part #: 221444-16

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.

Valve Spring - NexTek - Dual Spring - 546 lb/in Spring Rate - 1.220 in Coil Bind - 1.610 in OD - Set of 16

This product may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.

MIA's Description

These Manley NexTek valve springs are better designed using state-of-the-art machinery for purpose-built racing engines. They’re manufactured from super-clean, high-tensile chrome silicon steel and are shot-peened to MIL specs for maximum fatigue life. They feature a proprietary, multi-step heat-treating that minimizes load loss and have computer-aided modeling to minimize valve bounce and valve gear separation. The Manley NexTek valve springs are smaller diameter and lightweight, allowing engines to rev higher faster. They have an extended tip thickness designed to eliminate overload breakage, and their tightly controlled open-end flatness reduces valve stem side loading.

Fitment

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Specifications

BrandManley Performance
Part NumberM004 221444-16

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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