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Best in 7 days
Outer Diameter - Outer Valve Spring: 1.304"
Inner Diameter - Outer Valve Spring: 0.950"
Inner Diameter - Inner Valve Spring: 0.694"
Installed Height: 1.800"
Installed Load / Height (Valve Closed): 160 LB @ 1.800"
Open Height: 1.125"
Open Load: 425 PS
Open Load / Height (Valve Open): 425 LB @ 1.125"
Valve Spring Rate: 392 PS
Max Coil Bind: 1.020"
Max Valve Lift: 0.650"
Recommended Valve Spring Retainer - 300 Series: R335
Recommended Valve Spring Retainer - 400 Series: N/A
Recommended Valve Spring Retainer - 500 Series: N/A
Recommended Valve Spring Retainer - 600 Series: N/A
Recommended Valve Spring Seat: S129, S135
Recommended Valve Spring Cup: N/A
Valve Spring Series: 1900 Series
Valve Spring Type: Dual
Primary Application: Drag Race, Street Performance
