Part# | 221457 (Single Spring) |
Alt Part# | 221457-16 (Set of 16) |
Description | Manley NexTek Lightweight Dual Drag Race Valve Springs Super Stock & Competition Eliminator |
Outside Diameter | 1.500″ |
Outer Spring ID | 1.050″ |
Weight | 150 grams |
Maximum Valve Lift | .950″ |
Coil Bind | 1.130″ |
Inner Spring | ID 0.710″ |
Install Height | 2.150″ |
Load at Installed Height | 405 lbs |
Spring Open Height | 1.200″ |
Spring Open Load | 1165 lbs |
Spring Rate (lbs/in) | 800 |
Manley NexTek Dual Drag Race Springs 221457-16
Original price was: $758.00.$758.00Current price is: $758.00. Set of 16, Free Shipping $720.10
Manley NexTek® Lightweight Dual Drag Racing Springs have higher natural frequency and lower active mass providing improved valvetrain control and higher RPM potential. The dual spring design reduces friction, which generates less heat and greatly reduced load loss. The NexTek® design has been extensively tested on the Spintron, dyno and race track (including blown nitro engines) and proven to be highly effective. The lightweight dual spring design improves valve train control for higher engine rpm potential.
Type: Dual High Tensile Strength Super Finished Chrome Moly
Spring OD: 1.500″
Inner ID: .710″
Seat: 405 lbs @ 2.150″
Open: 1165 lbs @ 1.20″
Max Lift: .950″
Weight | 5.5 lbs |
---|---|
Dimensions | 16 × 4 × 4 in |
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