PSI Dual Valve Springs

PSI DR 1285 RML Max Life Dual Racing Valve Springs

$610.00 Set of 16, Free Shipping

PSI Performance Springs DR1285RML is a severe duty valve spring designed for solid roller valvetrain. Works with most aftermarket cylinder heads setup for 1.535″ OD Dual Springs. These springs have the Max-Life (RML) option which adds a multi-step surface enhancement process that has been proven to increase valve spring endurance.

Type: Dual
Spring OD: 1.535″”
Inner ID: .745″
Seat: 430 lbs @ 2.200″
Open: 1290 lbs @ 1.200″
Max Recommended Lift: 1.000″

SKU: PSI-DR-1285-RML-16 Category: Tags: , ,
Part#DR-1285-RML (Single Spring)
Alt Part#DR-1285-RML-16 (Set of 16)
DescriptionPSI Drag Race 1200 Series Dual Valve Spring
Spring TypeDual
Outside Diameter1.535″
Outer SpringID 1.070″
Middle SpringID N/A
Inner SpringID 0.745″
Seat Pressure430 lbs at 2.200″
Open Pressure1290 lbs at 1.200″
Rate Lb./In.860
Max Lift1.000″
Coil Bind1.140″
Retainer Step0.100″

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