Valve Spring Specs:
1.270” OD Hydraulic Roller Dual Drag Race Spring
.650” max lift
Installed Load: 155 lbs. @1.810
Open Load: 448lbs. @1.160
Coil Bind: 1.080
Spring Rate: 450 lbs.
Max RPM 7000-7200
Steel Retainer: 8511
SBC/SBF Steel Retainer: 8514
SBC/SBF Titanium Retainer: 8515
SBC/SBF Valve Lock: 9007
LSX Titanium Retainer: 8512
LSX Valve Lock: 9007
*For those who need shims any general shim kit will work