Valve Spring Specs:
1.550” OD Solid Roller Dual Drag Race Spring
.800” max lift
Installed Load: 250 lbs. @2000
Open Load: 762 lbs. @1,200
Coil Bind: 1.150
Spring Rate: 640 lbs.
Max RPM 8000-8200
Titanium Retainer: AFR-8505
SBC/SBF Valve Lock: AFR-9009
BBC Valve Lock: AFR-9005
BBF Valve Lock: AFR-9010
*For those who need shims any general shim kit will work