Chevy BBC 454 12 Point Head Stud Kit leading to valve seat damage

leading to valve seat damage and early valve grind

They are available for small and big block Chevys

Manifolds are cast from steel molds

Crafted from durable materials

They are heat-treated and threads are rolled to provide up to ten times more fatigue strength

Chevy BBC 454 12 Point Head Stud Kit leading to valve seat damageSpeedmaster cylinder head fasteners are made from aircraft quality 8740 high tensile strength chromoly steel and cold forged to ensure molecular integrity. They are heat treated prior to thread rolling and machining and are rated at a whopping 190,000 psi. All kits come complete with 12 point nuts and hardened parallel washers for an even load distribution and accurate torque readings.