Manley Engines & Components

VALVE-GEN II S/D 1.940

Part Number: MAN-11253-8

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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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Valves, Intake, NK-844 Stainless Steel, 1.937 in. Diameter, .342 in. Stem, 4.911 in. Length, Set of 8

Part Number: MAN-11592-8

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Valves, Intake, Stainless Steel, 2.020 in. Diameter, .341 in. Stem, 4.911 in. Length, Chevy, Set of 8

Part Number: MAN-11596-8

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Valves, Intake, Stainless Steel, 2.055 in. Diameter, .342 in. Stem, 4.911 in. Length, Chevy, Set of 8

Part Number: MAN-11598-8

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Valves, Intake, Stainless Steel, 2.165 in. Diameter, .313 in. Stem, 4.900 in. Length, Chevy, Set of 8

Part Number: MAN-11620H-8

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Valve, Ford Mod exhaust, 37.5mm Race Master, Bead Loc, set of 8

Part Number: MAN-11631B-8

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VALVE-FD 4.6L E/D 38.5mm B/L

Part Number: MAN-11633B-8

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VALVE-GEN II E/D 38mm

Part Number: MAN-11281-8

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SPRING-HONDA F20C/F22C

Part Number: MAN-22150-16

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SPRING-NISSAN VQ35DET

Part Number: MAN-22170-24

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Valve Springs, Single, 1.126 in. Outside Diameter, 330 lbs./in. Rate, 0.860 in. Coil Bind Height, Set of 16

Part Number: MAN-22185-16

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Estimated Ship Date: Oct 31, 2025 if ordered today

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VALVE SPRING SET OF 16

Part Number: MAN-22200-16

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Valves, Exhaust, NK-844 Stainless Steel, 2.300 in. Diameter, .372 in. Stem, 5.433 in. Length, Set of 8

Part Number: MAN-11536-8

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Valves, Exhaust, Stainless Steel, 1.625 in. Diameter, .341 in. Stem, 5.036 in. Length, Chevy, Set of 8

Part Number: MAN-11537-8

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Valves, Intake, NK-844 Stainless, 1.840 in. Diameter, .3415 in. Stem, 5.011 in. Length, Set of 8

Part Number: MAN-11540-8

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Valve, Exhaust, Severe Duty, Stainless Steel, 1.625 in. Diameter, 0.3415 in. Stem, 4.911 in. Length, Set of 8

Part Number: MAN-11541-8

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Valves, Intake, Stainless Steel, 2.300 in. Diameter, .372 in. Stem, 5.513 in. Length, Chevy, Set of 8

Part Number: MAN-11570-8

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Valve, Exhaust, Severe Duty, Stainless Steel, 1.625 in. Diameter, 0.3415 in. Stem, 5.121 in. Length, Each

Part Number: MAN-11571-8

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Valves, Exhaust, XH-428 Stainless, 1.625 in. Diameter, .3415 in. Stem, 5.165 in. Length, Set of 8

Part Number: MAN-11577-8

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ROD-MAZDA SPEED 3MZR 2.3L H/B

Part Number: MAN-14032-4

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Valve Springs, Dual, 1.160 in. Outside Diameter, 225 lbs./in. Rate, 0.790 in. Coil Bind Height, Set of 16

Part Number: MAN-22110-16

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Valve Springs, Dual, 1.160 in. O.D., 359 lbs./in. Rate, 1.070 in. Coil Bind Height, Set of 16

Part Number: MAN-22115-16

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