PAC Racing - Severe Duty Solid Roller Dual Valve Springs - (1225)
The PAC Racing 1225 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. PAC Racing 1200 Series valve springs are great as replacement parts or for pushing above and beyond the performance of factory engines. Select them when you're upgrading camshafts or doing engine rebuilds.
The PAC 1200 series springs utilize a premium quality alloy steel that outperforms automotive industry standards. PAC Racing post-processes the alloy to aerospace shot-peening standards to achieve superior fatigue dependability. This ensures that the springs maintain the load needed to withstand rigors of both street and racing applications. Very good valve spring for endurance or dual purpose drag/street applications. Round wire construction.
DIMENSIONS:
1.550” Outside Diameter
1.100" Inside Diameter
0.788" Inside Diameter
No Damper
SPECS:
250# at 2.000”
765# at 1.200”
644#/inch rate
.800” Max Lift
Coil Bind: 1.150"
152 grams
PART NUMBER: PAC-1225-16
