Manley Chevrolet Big Block Intake Valve Kit - 2.300in Head Dia. 5.244in O/A Length, 0.3415in Stem - 11730-8

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 Intake Valve Kit - 2.300in Head Dia. 5.244in O/A Length, 0.3415in Stem - 11780-8

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 materials (XH-428 for exhaust and NK-844 for intake),...

Manley Chevrolet Big Block Intake Valve Kit - 2.300in Head Dia. 5.344in O/A Length, 0.3110in Stem - 12842-8

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 materials (XH-428 for exhaust and NK-844 for intake),...

Manley Chevrolet Big Block Intake Valve Kit - 2.300in Head Dia. 5.344in O/A Length, 0.3415in Stem - 11816-8

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 Intake Valve Kit - 2.300in Head Dia. 5.344in O/A Length, 0.3715in Stem - 11728-8

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 Intake Valve Kit - 2.300in Head Dia. 5.433in O/A Length, 0.3720in Stem - 11536-8

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 materials (XH-428 for exhaust and NK-844 for intake),...

Manley Chevrolet Big Block Intake Valve Kit - 2.300in Head Dia. 5.444in O/A Length, 0.3110in Stem - 12784-8

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 materials (XH-428 for exhaust and NK-844 for intake),...

Manley Chevrolet Big Block Intake Valve Kit - 2.300in Head Dia. 5.513in O/A Length, 0.3720in Stem - 11570-8

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 materials (XH-428 for exhaust and NK-844 for intake),...

Manley Chevrolet Big Block Intake Valve Kit - 2.300in Head Dia. 5.594in O/A Length, 0.3110in Stem - 12878-8

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 materials (XH-428 for exhaust and NK-844 for intake),...

Manley Chevrolet Big Block Intake Valve Kit - 2.325in Head Dia. 5.494in O/A Length, 0.3110in Stem - 12838-8

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 materials (XH-428 for exhaust and NK-844 for intake),...

Manley Chevrolet Big Block Intake Valve Kit - 2.325in Head Dia. 5.509in O/A Length, 0.3415in Stem - 11838-8

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 materials (XH-428 for exhaust and NK-844 for intake),...

Manley Chevrolet Big Block Intake Valve Kit - 2.325in Head Dia. 6.590in O/A Length, 0.3415in Stem - 11580-8

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 materials (XH-428 for exhaust and NK-844 for intake),...