PSI Dual Valve Springs

PSI DR 424 Dual Racing Valve Springs

$404.00 Set of 16, Free Shipping

PSI Performance Springs DR-424 is a severe duty dual valve spring designed for solid roller valvetrain. Designed for aftermarket cylinder heads with 1.525″ OD Dual Springs.

Type: Dual
Spring OD: 1.525″
Inner ID: .780″
Seat: 250 lbs @ 2.000″
Open: 775 lbs @ 1.200″
Recommended Lift: .800″
Recommended Locators: CV X2SS-3374, Manley 42378-16

SKU: PSI-DR-424-16 Category: Tags: , , Brand:
Part# DR-424 (Single Spring)
Alt Part# DR-424-16 (Set of 16)
Description PSI Drag Race 1200 & RML Series Dual Valve Spring
Outside Diameter 1.525″
Outer Spring ID 1.100″
Middle Spring N/A
Inner Spring ID 0.780″
Install Height 2.000″
Load at Installed Height 250 lbs
Spring Open Height 1.200″
Spring Open Load 775 lbs
Recommended Valve Lift .800″
Spring Rate (lbs/in) 656
Retainer Step 0.100″
Coil Bind (max) 1.140″
Weight 5 lbs
Dimensions 16 × 4 × 4 in

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