PAC Racing - Heavy Duty Solid Roller Dual Valve Springs - (1227)
The PAC Racing 1227 is a severe duty valve spring designed for solid roller style valvetrain. Direct replacement for most aftermarket cylinder heads with 1.55 diameter dual springs. Very good valve spring for endurance or dual purpose drag/street applications. Round wire construction.
DIMENSIONS:
1.540” Outside Diameter
1.125" Inside Diameter
0.731" Inside Diameter
With Damper
SPECS:
200# at 1.950”
250# at 1.850"
550# at 1.250”
500#/inch rate
.700” Max Lift
Coil Bind: 1.150"
148 grams
PART NUMBER: PAC-1227-16
