COMP Cams GT40CS-KIT: GT40CS-KIT Valve Spring Kit for Ford GT40, GT40P Cylinder Heads [Rate: 416 lbs.]
Outer
Valve Spring Kit Ford GT40, GT40P Cylinder Heads Outer Spring O.D: 1.486 in. Outer Spring I.D: 1.052 in. Installed Height: 1.800 in. Seat Load: 110 lbs. Coil Bind: 1.170 in. Spring Rate: 318 lbs/in. w/Damper Sold as a Kit