CHEVROLET 7.4L/454 Manley Parts and Accessories

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, 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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Valve Springs/ Titanium Retainers, Nex Tek, 1.640 in. Outside Diameter, 604 lbs./in. Spring Rate, Kit

Part Number: MAN-261425

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Nex Tek Valve Springs/ Titanium Retainers, Super Gas/Comp/Big Block Bracket, Kit

Part Number: MAN-261424

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Estimated Ship Date: Apr 13, 2026 if ordered today

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Valves, Exhaust, XH-432 Xtreme Alloy, 1.880 in. Head Diameter, 5.454 in. Length, Chevy, Big Block, Set of 8

Part Number: MAN-11731-8

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Estimated Ship Date: Apr 13, 2026 if ordered today

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Valve, Intake, Stainless Steel, 1.900 in. Diameter, 0.342 in. Stem, 5.522 in. Length, Chevrolet, Set of 8

Part Number: MAN-11739-8

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Estimated Ship Date: Apr 14, 2026 if ordered today

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Valve Springs/ Titanium Retainers, Nex Tek, 1.640 in. Outside Diameter, 647 lbs./in. Spring Rate, Kit

Part Number: MAN-261424L

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Estimated Ship Date: Apr 13, 2026 if ordered today

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