1.450" Od. Dual Valve Springs w/Damper - 145Lbs @ 1.900" - 1.150" Coil Bind. Spring Rate (lbs/in): 145lbs @ 1.900 in. Coil Bind Height (in): 1.150 in. Damper Spring Included: Yes. Number of Springs Per Valve: Dual.
1.450" Od. Dual Valve Springs - 130Lbs @ 1.800" - 1.060" Coil Bind
Speedmaster 1.450" Od. Dual Valve Springs - 130Lbs @ 1.800" - 1.060" Coil Bind
1.450" Od. Dual Valve Springs w/Damper - 145Lbs @ 1.900" - 1.150" Coil Bind
1.550" Od. Dual Valve Springs - 275Lbs @ 2.100" - 1.175" Coil Bind
