VL-350A RACING RETROFIT SOLID ROLLER VALVE LIFTERS FOR SBC CHEVY/GM
8620 Steel Body Outside Diameter : 0.842"
9310 Steel Wheel Diameter : 0.750"
Effective Working Length : 1.80" ( Seat High)
Designed for maximum 300 PSI Spring Seat pressure.
Racing application potential to Maximum RPM 8,000.
800 PSI Spring Open Pressure.