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Manley Pro Stock / Fuel / Alcohol NexTek Series Drag Race Valve Springs

SKU: MAN221450-16

Valve Springs

MAN Valve Spring Kits...

Manley Pro Stock / Fuel / Alcohol NexTek Series Drag Race Valve Springs

SKU: MAN221450-16

Valve Springs

MAN Valve Spring Kits...

A$2,155.40
Available from MFR. This item is available from the manufacturer's distribution centre. The dispatch timeframe shown is an estimate based on historical order processing and release times for this part. This item is not held in our own warehouse, and actual dispatch timing may vary depending on manufacturer workload and logistics at the time of ordering.

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Description

Valve Spring

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.

Additional Information

Manley Valve Spring, SPRING-1.677 TRIPLE

Part Type

Engine Valve Spring Kit

Data: v4.2 - Upd: 2026-11-09 03:41:26

Features

  • Available in polished versions to reduce friction, improve fatigue life, and minimize load loss
  • Better valve train stability and component life
  • Ideally suited for Sportsman Drag Racing applications
  • Specially processed premium-grade chrome silicon that is virtually free of impurities or surface irregularities

Data: v2 - Desc: v4.2 - Upd: 2026-11-08 05:25:25

Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.

Specifications

Reference Information

Reference Data (Provide these details to our support team)
Brand Name/s Manley Performance, Manley
StreetFX SKU man221450-16
SFX Item ID 4060414
Accounting SKU man-221450-16
Manufacturer SKU 221450-16
Manufacturer UPC 807298033457
Alternative References 221450-16, MAN-221450-16

Valve Springs, Triple, 1.677 in. Outside Diameter, 770 lbs./in. Rate, 1.142 in. Coil Bind Height, Set of 16

These Manley NexTek valve springs are better-designed valve springs 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.

Product Attributes
BrandManley
Manufacturer's Part Number221450-16
Part TypeValve Springs
Product LineManley NexTek Valve Springs
UPC807298033457
Valve Spring StyleStandard
Number of Springs Per ValveTriple
Maximum Valve Lift (in.)1.000 in.
Retainers IncludedNo
Outside Diameter of Outer Spring (in.)1.677 in.
Coil Bind Height (in.)1.142 in.
Damper Spring IncludedNo
Spring Rate (lbs./in.)770 lbs./in.
Inside Diameter of Inner Spring (in.)0.632 in.
Locks IncludedNo
Valve Stem Seals IncludedNo
Valve Springs CoatedNo
RemanufacturedNo
QuantitySold as a set of 16.

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