CHEVROLET 7.4L/454 Manley Engines & Components

Crankshaft, 2-Piece Seal, Internal Balance, Forged 4340 Steel, 4.250 in. Stroke, Chevy, 7.4L, Each

Part Number: MAN-190140

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Valves, Intake, Stainless Steel, 2.300 in. Diameter, .341 in. Stem, 5.494 in. Length, Chevy, Set of 8

Part Number: MAN-11854-8

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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-11843-8

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Connecting Rod Bolts, 12-Point, Cap Screw, 7/16 in. Thread, 1.600 in. Length, Chevy, H-Beam, Set of 4

Part Number: MAN-42249-4

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Valves, Exhaust, Stainless Steel, 1.880 in. Diameter, .341 in. Stem, 5.522 in. Length, Chevy, Set of 8

Part Number: MAN-11815-8

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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, Intake, Stainless Steel, 2.250 in. Diameter, .341 in. Stem, 5.344 in. Length, Chevy, Set of 8

Part Number: MAN-11850-8

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Valves, Exhaust, Stainless Steel, 1.880 in. Diameter, .371 in. Stem, 5.354 in. Length, Chevy, Set of 8

Part Number: MAN-11587-8

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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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Cap Screws, Connecting Rod, ARP 2000, 7/16 in., Set of 4

Part Number: MAN-42390-4

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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, Exhaust, XH-432 Stainless, 1.880 in. Diameter, .3415 in. Stem, 5.522 in. Length, Set of 8

Part Number: MAN-11737-8

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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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Cylinder Head Bolts, Hex Head, Steel, Natural, Chevy, Big Block, with Brodix, Merlin, Heads, 1-Head, Set

Part Number: MAN-42192

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Valve, Intake, Stainless Steel, 2.300 in. Diameter, .341 in. Stem, 5.494 in. Length, Chevy, Each

Part Number: MAN-11854-1

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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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Guideplate 8pc. Set Big Block Chevy 3/8" Pushrod

Part Number: MAN-42164-8

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

Part Number: MAN-11743-8

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Estimated Ship Date: Jan 7, 2026 if ordered today

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Valve, Exhaust, Stainless Steel, 1.880 in. Diameter, .341 in. Stem, 5.422 in. Length, Chevy, Each

Part Number: MAN-11843-1

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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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Cylinder Head Bolts, Steel, Natural, Hex Head, Chevy, Big Block, with Stock Heads, 1-Head, Set

Part Number: MAN-42170

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