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Manley Performance

Manley Performance

Manley Oval Track NexTek Series 1.56in Dia .750in lift High Performance Valve Springs (Set of 16)

SKU: MAN221442-16

Valve Springs

MAN Valve Spring Kits...

Manley Oval Track NexTek Series 1.56in Dia .750in lift High Performance Valve Springs (Set of 16)

Manley Performance

Manley Performance

Manley Oval Track NexTek Series 1.56in Dia .750in lift High Performance Valve Springs (Set of 16)

SKU: MAN221442-16

Valve Springs

MAN Valve Spring Kits...

Sale ends in Calculating...

A$1,143.56 A$1,244.70
IN STOCK! Est Ship 4-7 days. In stock at 2 locations (more than 10 available)

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Description

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.

Part Type

Engine Valve Spring Kit

Data: v4.2 - Upd: 2026-11-03 04:18:24

Features

  • No degradation of spring pressure in the later stages of a race
  • Specially processed premium-grade chrome silicon that is virtually free of impurities or surface irregularities
  • Tested by leading engine builders and are confirmed to be the best performing valve springs on the market today

Specifications

Product Attributes - Brand
Manley
Product Attributes - Manufacturer's Part Number
221442-16
Product Attributes - Part Type
Valve Springs
Product Attributes - Product Line
Manley NexTek Valve Springs
Product Attributes - UPC
807298023953
Product Attributes - Valve Spring Style
Standard
Product Attributes - Number of Springs Per Valve
Dual
Product Attributes - Maximum Valve Lift (in.)
0.750 in.
Product Attributes - Retainers Included
No
Product Attributes - Outside Diameter of Outer Spring (in.)
1.560 in.
Product Attributes - Coil Bind Height (in.)
1.200 in.
Product Attributes - Damper Spring Included
No
Product Attributes - Spring Rate (lbs./in.)
533 lbs./in.
Product Attributes - Inside Diameter of Inner Spring (in.)
0.812 in.
Product Attributes - Locks Included
No
Product Attributes - Valve Stem Seals Included
No
Product Attributes - Valve Springs Coated
No
Product Attributes - Remanufactured
No
Product Attributes - Quantity
Sold as a set of 16.

Reference Information

Brand Name/s Manley Performance
StreetFX SKU man221442-16
SFX Item ID 4061031
Supplier Item Code 4061031
Manufacturer SKU 221442-16
Manufacturer UPC 807298023953
Alternative References 1.56in, .750in

Compatibility

Application Data
  • Installed Height (in.)2.000 in.
    Seat Pressure at Installed Height (lbs.)260 lbs.
    Open Height (in.)(application)1.250
    Open Pressure (lbs.)660 lbs.

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