Increased outer hardened layer thickness (RC 55-60)
typically had to go to suppliers on the West coast for up to date racing components for their race cars
Easier Control At End Of Track
Less Chance Of Hand Slipping
Low-smoke formula
Edelbrock 7 Degree Valve Lock - 11/32 in Valve Stem - 0.050 in Less Height - Set of 32 2110013 Increased outer hardened layer thicknessHeat treated machined (HTM) 7 valve stem locks for use with Edelbrock retainers. Black oxide, top quality steel for maximum strength. Available in sets of 32 (except number 9614). Edelbrock, E 210, Victor Jr., Chevy, Cylinder Head, 11 32", Single Groove, . 050" low, 7 Degree, 4140 Machine Hardened steel, Valve Stem locks, Valve, Locks, 9615 Valve Stem Diameter (mm): 8. 67mm Lock Style: 7 degree Lock Groove Quantity: 1 groove Lock Material: Hardened