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PSI Triple Valve Springs Drag Racing

PSI DR 1249 ML Max Life Triple Racing Valve Springs

$620.00 $589.00

PSI Performance Springs DR-1249 is a severe duty valve spring designed for solid roller valvetrain. Works with most aftermarket cylinder heads with 1.660″ OD Triple Springs. These springs have the Max-Life (ML) option which adds a multi-step surface enhancement process that has been proven to increase valve spring endurance.

Type: Triple
Spring OD: 1.660″
Inner ID: .630″
Seat: 385 lbs @ 2.200″
Open: 1110 lbs @ 1.200″
Recommended Lift: 1.000″

SKU: PSI-DR-1249-ML-16 Category: Tags: , ,
Part#DR-1249-ML (Single Spring)
Alt Part#DR-1249-16 (Set of 16)
DescriptionPSI Drag Race 1200 Series Triple Valve Spring
Outside Diameter1.660″
Outer SpringID 1.195″
Middle SpringID .870″
Inner SpringID 0.630″
Install Height2.200″
Load at Installed Height385 lbs
Spring Open Height1.200″
Spring Open Load1110 lbs
Recommended Valve Lift1.000″
Spring Rate (lbs/in)725
Retainer Step0.100″
Coil Bind (max)1.130″

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