1980 Manley Engines & Components

Piston, Forged, Flat, 4.040 in. Bore, Chevy, Each

Part Number: MAN-591340R-1

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Pistons, Forged, Flat, Gas Ported, Chevy, Set of 8

Part Number: MAN-591530-8

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Piston, Forged, Flat, 4.030 in. Bore, Gas Ported, Driver Side, Chevy, Each

Part Number: MAN-591530L-1

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Valve, Intake, Stainless Steel, 2.020 in. Diameter, .341 in. Stem, 5.011 in. Length, Chevy, Each

Part Number: MAN-11882-1

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Valve, Exhaust, Race Master, Stainless Steel, 1.940 in. Diameter, 0.3415 in. Stem, 5.422 in. Length, Each

Part Number: MAN-11885-1

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Valve, Intake, Stainless Steel, 2.080 in. Diameter, .341 in. Stem, 5.140 in. Length, Chevy, Each

Part Number: MAN-11858-1

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Valve, Intake, Stainless Steel, 1.940 in. Diameter, .3415 in. Stem, 4.951 in. Length, Each

Part Number: MAN-11860-1

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Valve, Exhaust, Stainless Steel, 1.500 in. Diameter, .3415 in. Stem, 4.951 in. Length, Each

Part Number: MAN-11861-1

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VALVE-S/D 2.100,+.200

Part Number: MAN-11862-1

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Valves, Exhaust, Severe Duty, Stainless Steel, 1.880 in.Diameter, 0.311 in. Stem, 5.422 in. Length, Set of 8

Part Number: MAN-12815-8

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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, Exhaust, Stainless Steel, 1.880 in. Head Diameter, 5.422 in. Length, Chevy, Big Block, Each

Part Number: MAN-12843-8

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Valve, Intake, Stainless Steel, 2.250 in. Head Diameter, 5.344 in. Length, Chevy, Big Block, Each

Part Number: MAN-12850-1

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Valve, Intake, Stainless Steel, 2.250 in. Head Diameter, 5.344 in. Length, Chevy, Big Block, Set of 8

Part Number: MAN-12850H-1

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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-12854-1

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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, 2.350 in. Diameter, Stainless Steel, 0.350 in. Over Installed Length, Chevy, Big Block, Each

Part Number: MAN-12880-1

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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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Valve, Exhaust, Stainless Steel, 1.880 in. Diameter, .371 in. Stem, 5.522 in. Length, Each

Part Number: MAN-11515-1

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Valve, Intake, Stainless Steel, 2.190 in. Diameter, .372 in. Stem, 5.218 in. Length, Chevy, Each

Part Number: MAN-11520-1

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Valve, Intake, Stainless Steel, 2.250 in. Diameter, .372 in. Stem, 5.325 in. Length, Chevy, Each

Part Number: MAN-11524-1

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Valve, Intake, Stainless Steel, 2.250 in. Diameter, .371 in. Stem, 5.218 in. Length, Chevy, Each

Part Number: MAN-11526-1

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Estimated Ship Date: Mar 27, 2026 if ordered today

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Crankshaft, 2-Piece Seal, Internal Balance, Forged 4340 Steel, 4.00 in. Stroke, Chevy, 7.4L, Each

Part Number: MAN-190170

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Valve, Exhaust, Severe Duty, Stainless Steel, 1.940 in. Diameter, 0.3715 in. Stem, 5.464 in. Length, Each

Part Number: MAN-11533-1

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