PBM valve locks are available in 7 degree, Super 7 degree and 10 degree styles, and in several alloy choices.
Stamped Steel locks are an economical choice for stock or mild performance applications, they are heat treated for maximum strength and durability.
Machined Valve Locks are machined from alloy steel and heat treated for maximum strength and durability. Recommended for moderate competition applications. These locks are 3 times stronger than original equipment valve locks.
High Strength Steel Valve Locks are machined from 4130 Chrome Moly Steel and heat treated for maximum strength and durability. Recommended for competition applications requiring Ultra high spring loads.
Titanium locks are CNC machined and our the best choice for serious competition applications using Ultra high spring loads but requiring the lightest weight to help control valve float. A typical weight savings of about four grams per pair.