Manley Dual Valve Springs (00-09 S2000)

Manley dual valve springs for 00-09 S2000.

• Open Pressure: 264 lbs at 1.100"  / 283 lbs at 1.050"
• Seat Pressure: 84 lbs at 1.580"
• Stock/Max Lift 0.480" / 0.530"
• Coil Bind 1.000"
• OD/ID 1.160"/.870"
• Outter/Inner .865"/.660"
• Rate 375lbs/in
• Super clean chrome silicon high tensile strength steel alloy
• classified heat treatment and shot peen processing
• Minimizes stress to ensure long service life with high lift camshafts.