Australia-wide shipping on performance, 4x4 and vehicle-specific upgrades.

Manley NexTek Series 1.500 OD .850 Lift Super Stock and Competition Eliminator Valve Spring Set

SKU: MAN221420-16

Valve Springs

MAN Valve Spring Kits...

Manley NexTek Series 1.500 OD .850 Lift Super Stock and Competition Eliminator Valve Spring Set

SKU: MAN221420-16

Valve Springs

MAN Valve Spring Kits...

A$1,741.88
IN STOCK! Est Ship 4-7 days. This item is IN STOCK at one of our warehouses or distribution centres, the ETA is the approximate time required to prepare your order for dispatch.
View cart
We accept
American Express
Mastercard
Visa
PayPal Checkout
Direct Deposit
Afterpay
Apple Pay
Google Pay
Zip Pay

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: 2026-10-13 17:06:38

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
221420-16
Product Attributes - Part Type
Valve Springs
Product Attributes - Product Line
Manley Lightweight Dual Drag Race Valve Springs
Product Attributes - UPC
807298082097
Product Attributes - Valve Spring Style
Standard
Product Attributes - Number of Springs Per Valve
Dual
Product Attributes - Maximum Valve Lift (in.)
0.850 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.)
780 lbs./in.
Product Attributes - Inside Diameter of Outer Spring (in.)
1.050 in.
Product Attributes - Inside Diameter of Inner Spring (in.)
0.710 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.
Product Attributes - Notes
Valve springs are super finished.

Reference Information

Brand Name/s Manley Performance
StreetFX SKU man221420-16
SFX Item ID 4061166
Supplier Item Code 4061166
Manufacturer SKU 221420-16
Manufacturer UPC 807298082097

Compatibility

Application Data
  • Installed Height (in.)2.050 in.
    Seat Pressure at Installed Height (lbs.)275 lbs.
    Open Height (in.)(application)1.200
    Open Pressure (lbs.)940 lbs.

Loading compatibility information...

Keep shopping

More from Manley Performance