Manley Honda/Acura 5.5mm OEM Radius Sport Compact Valve Locks (8pc) - 13010-8

Manley Performance Valve Locks are precision-machined to securely retain the valve spring retainer to the valve stem, ensuring accurate valvetrain geometry and dependable performance. Available for...

Manley Big Block Chevrolet Extreme Duty Exhaust Valve - 5.522in Overall L 1.900in Diameter Set of 8 - 12739-8

Discover the extraordinary capabilities of Manley Performance Products' Extreme Duty Series Valves. Engineered to cater to the demanding needs of Top Fuel and Funny Car drag racers, Big Block Chevy...

Manley Big Block Chevrolet Extreme Duty Exhaust Valve - 5.522in Overall L 1.900in Diameter - Single - 12739-1

Discover the extraordinary capabilities of Manley Performance Products' Extreme Duty Series Valves. Engineered to cater to the demanding needs of Top Fuel and Funny Car drag racers, Big Block Chevy...

Manley Ford Coyote 5.0L 32mm Extreme Duty Exhaust Valves (Set of 8) - 12627B-8

Discover the extraordinary capabilities of Manley Performance Products' Extreme Duty Series Valves. Engineered to cater to the demanding needs of Top Fuel and Funny Car drag racers, Big Block Chevy...

Manley Ford Coyote 5.0L 31.5mm Extreme Duty Exhaust Valves (Set of 8) - 12627-8

Discover the extraordinary capabilities of Manley Performance Products' Extreme Duty Series Valves. Engineered to cater to the demanding needs of Top Fuel and Funny Car drag racers, Big Block Chevy...

Manley Ford Coyote 5.0L 31mm Extreme Duty Exhaust Valves w/ Bead Loc Keeper Groove (Set of 8) - 12623B-8

Discover the extraordinary capabilities of Manley Performance Products' Extreme Duty Series Valves. Engineered to cater to the demanding needs of Top Fuel and Funny Car drag racers, Big Block Chevy...

Manley Ford Coyote 5.0L 31mm Extreme Duty Exhaust Valves (Set of 8) - 12623-8

Discover the extraordinary capabilities of Manley Performance Products' Extreme Duty Series Valves. Engineered to cater to the demanding needs of Top Fuel and Funny Car drag racers, Big Block Chevy...

Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Extreme Duty Exhaust Valves (Set of 8) - 12363-8

Discover the extraordinary capabilities of Manley Performance Products' Extreme Duty Series Valves. Engineered to cater to the demanding needs of Top Fuel and Funny Car drag racers, Big Block Chevy...

Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Set of 8) - 12361-8

Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive...

Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Single) - 12361-1

Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive...

Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valves (Set of 8) - 12358-8

Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive...

Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valve (Single) - 12358-1

Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive...