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Best in 7 days
Outer Diameter - Outer Valve Spring: 1.550"
Inner Diameter - Outer Valve Spring: 1.136"
Inner Diameter - Inner Valve Spring: 0.812"
Installed Height: 1.900"
Installed Load / Height (Valve Closed): 240 LB @ 1.900"
Open Height: 1.200"
Open Load: 625 PS
Open Load / Height (Valve Open): 625 LB @ 1.200"
Valve Spring Rate: 550 PS
Max Coil Bind: 1.130"
Max Valve Lift: 0.700"
Recommended Valve Spring Retainer - 300 Series: N/A
Recommended Valve Spring Retainer - 400 Series: R436
Recommended Valve Spring Retainer - 500 Series: R536
Recommended Valve Spring Retainer - 600 Series: N/A
Recommended Valve Spring Seat: S119, S120
Recommended Valve Spring Cup: N/A
Valve Spring Series: 1200 Series
Valve Spring Type: Dual
Primary Application: Circle Track, Drag Race, Street Performance
