PSI Dual Valve Springs

PSI DR 425 Dual Racing Valve Springs

$404.00 Set of 16, Free Shipping

PSI Performance Springs DR-425 is a severe duty dual valve spring designed for solid roller valvetrain. Designed for aftermarket cylinder heads with 1.625″ OD Dual Springs.

Type: Dual
Spring OD: 1.625″
Inner ID: .855″
Seat: 305 lbs @ 2.050″
Open: 865 lbs @ 1.150″
Recommended Lift: .900″

SKU: PSI-DR-425-16 Category: Tags: , ,
Part# DR-425 (Single Spring)
Alt Part# DR-425-16 (Set of 16)
Description PSI Drag Race 1200 & RML Series Dual Valve Spring
Outside Diameter 1.625″
Outer Spring ID 1.175″
Middle Spring N/A
Inner Spring ID 0.855″
Install Height 2.050″
Load at Installed Height 305 lbs
Spring Open Height 1.150″
Spring Open Load 865 lbs
Recommended Valve Lift .900″
Spring Rate (lbs/in) 622
Retainer Step 0.100″
Coil Bind (max) 1.100″
Weight 6 lbs
Dimensions 16 × 4 × 4 in

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