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PSI Triple Valve Springs Drag Racing

PSI DR 1250 RML Max Life Triple Racing Valve Springs

$660.00 $627.00

PSI Performance Springs DR-1250-RML is a severe duty valve spring designed for solid roller valvetrain. Works with most aftermarket cylinder heads with 1.660″ OD Triple Springs. 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.

Type: Triple
Spring OD: 1.660″
Inner ID: .630″
Seat: 395 lbs @ 2.250″
Open: 1178 lbs @ 1.200″
Recommended Lift: 1.050″

SKU: PSI-DR-1250-RML-16 Category: Tags: , ,

Coil Bind (max)1.130″

Part#DR-1250-RML (Single Spring)
Alt Part#DR-1250-RML-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 Height2.250″
Load at Installed Height395 lbs
Spring Open Height1.200″
Spring Open Load1178 lbs
Recommended Valve Lift1.050″
Spring Rate (lbs/in)746
Retainer Step0.100″
Weight7.7 lbs
Dimensions16 × 4 × 3.5 in

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