PAC Racing - Severe Duty Single Valve Springs - (1201)
The PAC Racing 1201 small diameter to fit small block Chevrolet and many other aftermarket cylinder heads without spring pocket machining.
This is a single spring with flat wire damper. High rate for aggressive cams.
DIMENSIONS:
1.260” Outside Diameter
0.770" Inside Diameter
With Damper
SPECS:
Seat Pressure: 140# at 1.750”
Open Pressure: 410# at 1.200”
Spring Rate: 540#/inch
.550” Max Lift
Coil Bind: 1.115"
82 grams
PART NUMBER: PAC-1201-16
