PSI BEEHIVE VALVE SPRING SET - .650" LIFT - 1517ML

PSI BEEHIVE VALVE SPRING SET - .650" LIFT - 1517ML - Ford Godzilla 6.8/7.3

The perfect match for cams as large as our U-231! 1517ML is a virtual drop-in for Godzilla intake and exhaust positions using the OE retainer and locating seal. This series has all the benefits of the 1200’s plus an additional nitriding operation. The nitriding process, which is also done in-house, increases the strength at the surface of the wire and at the same time causes a slight softening of the core material. This trade-off in hardness results in a gain in endurance for the Circle Track and Road Circuit teams who are limited by the onset of fatigue at the wire surface. Since Drag racers are not limited by endurance, the loss of core hardness does not make nitriding suitable for their applications.

Spring Type - Beehive

Spring O.D. - 1.210"

Outer I.D. - 0.685"

Seat Pressure - 130# @2.362"

Open Pressure - 400# @ 1.712"

 Rate Lbs/In - 415.0"

Maximum Lift - 0.650"

Coil Bind - 1.600"