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Manley NexTek Valve Springs 221455-16 Springs, Dual, 1.500 in. Outside Diameter, 797 lbs./in. Rate, 1.130 in. Coil Bind Height, Set of 16

SKU: MAN221455-16

Valve Springs

Manley NexTek Valve Springs 221455-16 Springs, Dual, 1.500 in. Outside Diameter, 797 lbs./in. Rate, 1.130 in. Coil Bind Height, Set of 16

SKU: MAN221455-16

Valve Springs
A$2,179.37
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

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: 2026-10-14 10:10:17

Features

  • Accepts smaller, lighter retainers which also promotes higher revs
  • Dual spring design reduces friction, which generates less heat and translates into greatly reduced load loss
  • Extensively tested on the Spintron, dyno and race track (including blown nitro engines) and proven highly effective
  • Higher natural frequency and lower active mass provides improved valvetrain control and higher RPM potential
  • Smaller diameter, lightweight dual design allows engine to rev higher with improved valve train control
  • Ultra clean, high tensile strength chrome silicon material

Specifications

Product Attributes - Brand
Manley
Product Attributes - Manufacturer's Part Number
221455-16
Product Attributes - Part Type
Valve Springs
Product Attributes - Product Line
Manley NexTek Valve Springs
Product Attributes - UPC
807298039749
Product Attributes - Valve Spring Style
Standard
Product Attributes - Number of Springs Per Valve
Dual
Product Attributes - Maximum Valve Lift (in.)
1.000 in.
Product Attributes - Retainers Included
No
Product Attributes - Outside Diameter of Outer Spring (in.)
1.500 in.
Product Attributes - Coil Bind Height (in.)
1.130 in.
Product Attributes - Damper Spring Included
No
Product Attributes - Spring Rate (lbs./in.)
797 lbs./in.
Product Attributes - Inside Diameter of Inner Spring (in.)
0.719 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 man221455-16
SFX Item ID 4929197
Supplier Item Code 4929197
Manufacturer SKU 221455-16
Manufacturer UPC 807298039749

Compatibility

Application Data
  • Installed Height (in.)2.175 in.
    Seat Pressure at Installed Height (lbs.)438 lbs.
    Open Height (in.)(application)1.175
    Open Pressure (lbs.)1,235 lbs.

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