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PSI Triple Valve Springs Drag Racing

PSI DR 1253 RML Triple Racing Valve Springs

Original price was: $660.00.Current price is: $640.20. Set of 16, Free Shipping

PSI Performance Springs DR-1253-RML is a severe duty 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 1.630″ OD Triple Springs.

Type: Triple
Spring OD: 1.630″
Inner ID: .630″
Seat: 440 lbs @ 2.200″
Open: 1200 lbs @ 1.150″
Recommended Lift: 1.050″

SKU: PSI-DR-1253-RML-16 Category: Tags: , ,
Part#DR-1253-RML (Single Spring)
Alt Part#DR-1253-RML-16 (Set of 16)
DescriptionPSI Drag Race 1200 & RML Series Triple Valve Spring
Outside Diameter1.630″
Outer SpringID 1.180″
Middle SpringID .870″
Inner SpringID 0.630″
Install Height2.200″
Load at Installed Height440 lbs
Spring Open Height1.200″
Spring Open Load1200 lbs
Recommended Valve Lift1.050″
Spring Rate (lbs/in)724
Retainer Step0.100″
Coil Bind (max)1.080″
Weight8 lbs
Dimensions16 × 4 × 3.5 in

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