CHEVROLET 7.4L/454 Manley Parts and Accessories

Valve Springs, Dual, 1.437 in. Outside Diameter, 391 lbs./in. Rate, 1.085 in. Coil Bind Height, Set of 16

Part Number: MAN-22407-16

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Valves, Exhaust, Stainless Steel, 1.880 in. Diameter, .341 in. Stem, 5.422 in. Length, Chevy, Set of 8

Part Number: MAN-11881-8

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Valves, Intake, Stainless Steel, 2.065 in. Diameter, .371 in. Stem, 5.218 in. Length, Chevy, Set of 8

Part Number: MAN-10714-8

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Valve Springs, Single, 1.550 in. Outside Diameter, 460 lbs./in. Rate, 1.190 in. Coil Bind Height, Set of 16

Part Number: MAN-22406-16

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Valves, Exhaust, Stainless Steel, 1.880 in. Diameter, .371 in. Stem, 5.350 in. Length, Chevy, Set of 8

Part Number: MAN-11527-8

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Valves, Exhaust, Stainless Steel, 1.725 in. Diameter, .371 in. Stem, 5.350 in. Length, Chevy, Set of 8

Part Number: MAN-10717-8

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Valves, Intake, NK-842 Stainless, 2.300 in. Diameter, .3415 in. Stem, 5.494 in. Length, Set of 8

Part Number: MAN-11870-8

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Valves, Intake, Stainless Steel, 2.190 in. Diameter, .371 in. Stem, 5.218 in. Length, Chevy, Set of 8

Part Number: MAN-10728-8

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Valves, Exhaust, XH-426 Stainless, 1.880 in. Diameter, .3415 in. Stem, 5.522 in. Length, Set of 8

Part Number: MAN-11761-8

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Valves, Exhaust, Stainless Steel, 1.880 in. Diameter, .371 in. Stem, 5.350 in. Length, Chevy, Set of 8

Part Number: MAN-10727-8

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Valve, Exhaust, Titanium, 1.880 in. Diameter, .3415 in. Stem, 5.440 in. Length, Each

Part Number: MAN-11479-1

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Estimated Ship Date: Jan 6, 2026 if ordered today

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Valves, Intake, NK-842 Stainless, 2.250 in. Diameter, .3415 in. Stem, 5.344 in. Length, Set of 8

Part Number: MAN-11814-8

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Valves, Intake, NK-842 Stainless, 2.250 in. Diameter, .3415 in. Stem, 5.494 in. Length, Set of 8

Part Number: MAN-11868-8

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Estimated Ship Date: Jan 6, 2026 if ordered today

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Valves, Intake, Stainless Steel, 2.190 in. Diameter, .371 in. Stem, 5.218 in. Length, Chevy, Set of 8

Part Number: MAN-11528-8

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Valve, Intake, Stainless Steel, 2.250 in. Diameter, .342 in. Stem, 5.494 in. Length, Set of 8

Part Number: MAN-10868-8

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Valves, Intake, Stainless Steel, 2.065 in. Diameter, .371 In. Stem, 5.218 in. Length, Chevy, Set of 8

Part Number: MAN-11514-8

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Estimated Ship Date: Jan 8, 2026 if ordered today

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Valves, Exhaust, Stainless Steel, 1.725 in. Diameter, .371 In. Stem, 5.350 in. Length, Chevy, Set of 8

Part Number: MAN-11517-8

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Estimated Ship Date: Jan 8, 2026 if ordered today

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Valves, Exhaust, Stainless Steel, 1.880 in. Diameter, .371 in. Stem, 5.522 in. Length, Chevy, Set of 8

Part Number: MAN-11515-8

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Valves, Intake, Stainless Steel, 2.250 in. Diameter, .371 in. Stem, 5.218 in. Length, Chevy, Set of 8

Part Number: MAN-11526-8

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Valve, Intake, Titanium, 2.325 in. Head Diameter, 5.500 in. Length, Chevy, Big Block, Each

Part Number: MAN-11940-1

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Valve, Exhaust, Race Master, Stainless Steel, 1.880 in. Diameter, 0.3415 in. Stem, 5.422 in. Length, Set of 8

Part Number: MAN-11717-8

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Valve, Exhaust, Race Master, Stainless Steel, 1.940 in. Diameter, 0.3415 in. Stem, 5.422 in. Length, Set of 8

Part Number: MAN-11885-8

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Valve, Intake, Titanium, 2.300 in. Diameter, 0.342 in. Stem, 5.522 in. Length, Each

Part Number: MAN-11482-1

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Estimated Ship Date: Jan 6, 2026 if ordered today

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Valve, BBC intake 2.190 stock length, Street Master, set of 8

Part Number: MAN-10872-8

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Valves, Intake, Stainless Steel, 2.250 in. Diameter, .371 in. Stem, 5.218 in. Length, Chevy, Set of 8

Part Number: MAN-10726-8

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Estimated Ship Date: Jan 7, 2026 if ordered today

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