Quick Overview
Spring Diameter--
O.D. of Outer: 1.625
I.D. of Outer: .770
I.D. of Inner: .740
“Tool Room” Valve Springs feature the highest quality alloy wire and trade secret endurance processing available. The longer life gold stripe spring has near zero load loss. Test proven for 1,000 racing miles. Recommended maximum 8,800 RPM.
Spring Diameter--
Damper: Yes
Recom. Camshaft Application: Hyd. Roller
Seat Pressure at Installed Height: 250# at 2.020
Open Pressure and Height: 875# at 1.270
Coil Bind: 1.180