CHEVROLET Manley Engines & Components

Valves, Exhaust, XH-428 Stainless, 1.625 in. Head Diameter, 5.465 in. Length, Chevy, Small Block, Set of 8

Part Number: MAN-11511-8

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Valves, Intake, NK-844 Stainless, 2.080 in. Head Diameter, 5.440 in. Length, Chevy, Small Block, Set of 8

Part Number: MAN-11512-8

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Valves, Exhaust, XH-428 Stainless, 1.600 in. Diameter, .3415 in. Stem, 5.465 in. Length, Set of 8

Part Number: MAN-11513-8

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VALVE-BBC E/D 1.900

Part Number: MAN-12745-8

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VALVE-BBC S/D 1.940

Part Number: MAN-12803-8

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Valve, Intake, Titanium, 2.300 in. Head Diameter, 5.344 in. Length, Chevy, Big Block, Set of 8

Part Number: MAN-12842-8

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Valve, Intake, Stainless Steel, 2.300 in. Head Diameter, 5.494 in. Length, Chevy, Big Block, Set of 8

Part Number: MAN-12854-8

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Valves, Intake, Severe Duty, Stainless Steel, 2.250 in.Diameter, 0.311 in. Stem, 5.494 in. Length, Set of 8

Part Number: MAN-12856-8

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Valve, Intake, Stainless Steel, 2.300 in. Head Diameter, 5.594 in. Length, Chevy, Big Block, Set of 8

Part Number: MAN-12878-8

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Valve, Intake, Stainless Steel, 2.350 in. Head Diameter, 5.594 in. Length, Chevy, Big Block, Set of 8

Part Number: MAN-12880-8

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Valve, Intake, Stainless Steel, 2.250 in. Head Diameter, 5.594 in. Length, Chevy, Big Block, Each

Part Number: MAN-12898-8

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Valve Spring, Dual, 1.340 in. Outside Diameter, 394 lbs./in. Rate, 1.050 in. Coil Bind Height, Set of 16

Part Number: MAN-221435-16

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Estimated Ship Date: Nov 4, 2025 if ordered today

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Valves, Intakes, Stainless Steel, 2.055 in. Diameter, .341 in. Stem, 5.011 in. Length, Chevy, Set of 8

Part Number: MAN-11824-8

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Estimated Ship Date: Nov 4, 2025 if ordered today

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