Manley Chevrolet Big Block Exhaust Valve Kit - 1.800in Head Dia. 5.930in O/A Length, 0.3415in Stem - 12351-8

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 Chevrolet L-99 intake Valve Kit - 2.165in Head Dia. 5.200in O/A Length, 0.3133in Stem - 12350H-8

Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM

Manley Chevrolet Small Block Intake Valve Kit - 2.125in Head Dia. 5.035in O/A Length, 0.3133in Stem - 12346-8

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 Chevrolet Big Block Exhaust Valve Kit - 1.800in Head Dia. 5.930in O/A Length, 0.3415in Stem - 12343-8

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 Chevrolet Small Block Intake Valve Kit - 1.720in Head Dia. 4.911in O/A Length, 0.3415in Stem - 12342-8

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 Chevrolet Big Block Exhaust Valve Kit - 1.800in Head Dia. 5.930in O/A Length, 0.3415in Stem - 12341-8

Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM

Manley Chevrolet Big Block Exhaust Valve Kit - 1.850in Head Dia. 5.500in O/A Length, 0.3415in Stem - 12339-8

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 Chevrolet Small Block Intake Valve Kit - 2.080in Head Dia. 5.035in O/A Length, 0.3133in Stem - 12336-8

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 Chevrolet Small Block Exhaust Valve Kit - 1.600in Head Dia. 4.950in O/A Length, 0.3136in Stem - 12335-8

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 Chevrolet Small Block Intake Valve Kit - 2.080in Head Dia. 4.935in O/A Length, 0.3133in Stem - 12334-8

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 Chevrolet Small Block Intake Valve Kit - 2.200in Head Dia. 5.110in O/A Length, 0.3110in Stem - 12328-8

Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM

Manley Chevrolet Small Block Intake Valve Kit - 2.200in Head Dia. 5.010in O/A Length, 0.3110in Stem - 12326-8

Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM