SAVE 5%
PSI Dual Valve Springs

PSI DR 1257 RML Dual Racing Valve Springs

Original price was: $640.00.Current price is: $640.00. Set of 16, Free Shipping $608.00

PSI Performance Springs DR-1257-RML is a severe duty dual valve spring designed for solid roller valvetrain with added features. This model includes the special RML high strength materials for extended load retention and Max Life (ML) multi-step surface enhancement process to increase spring endurance. Designed for aftermarket cylinder heads with 1.570″ OD Dual Springs.

Type: Dual
Spring OD: 1.570″
Inner ID: .745″
Seat: 410 lbs @ 2.150″
Open: 1260 lbs @ 1.300″
Recommended Lift: .850″

SKU: PSI-DR-1257-RML-16 Category: Tags: , , ,

Coil Bind (max)1.140″

Part# DR-1257-RML (Single Spring)
Alt Part# DR-1257-RML-16 (Set of 16)
Description PSI Drag Race 1200 & RML Series Dual Valve Spring
Outside Diameter 1.570″
Outer Spring ID 1.070″
Middle Spring N/A
Inner Spring ID 0.745″
Install Height 2.150″
Load at Installed Height 410 lbs
Spring Open Height 1.300″
Spring Open Load 1260 lbs
Recommended Valve Lift .850″
Spring Rate (lbs/in) 1000
Retainer Step 0.100″

Reviews

There are no reviews yet.

Be the first to review “PSI DR 1257 RML Dual Racing Valve Springs”