CHEVROLET Chevy big block Mark IV 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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VALVE-TI 2.350,+.250

Part Number: MAN-11484-8

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Estimated Ship Date: Jan 23, 2026 if ordered today

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CRANK-4340 FORGE 4.250 STROKE

Part Number: MAN-190290

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Estimated Ship Date: Jan 20, 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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Estimated Ship Date: Jan 21, 2026 if ordered today

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VALVE-TI 2.325,+.250 BEAD LOC

Part Number: MAN-11940B-8

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Estimated Ship Date: Jan 22, 2026 if ordered today

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Valves, Intake, Titanium, 2.300 in. Diameter, .3415 in. Stem, 5.350 in. Length, Chevy Big Block, Each

Part Number: MAN-11944TB-8

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Estimated Ship Date: Jan 22, 2026 if ordered today

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Valves, Exhaust, Titanium, 1.900 in. Diameter, .342 in. Stem, 5.440 in. Length, Each

Part Number: MAN-11481B-8

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Estimated Ship Date: Jan 22, 2026 if ordered today

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Valve, Exhaust, Titanium, 1.900 in. Diameter, 0.3415 in. Stem, 5.540 in. Length, Set of 8

Part Number: MAN-11483-8

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Estimated Ship Date: Jan 22, 2026 if ordered today

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CRANK-4340 FORGE 4.375 STROKE

Part Number: MAN-190250

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Estimated Ship Date: Jan 22, 2026 if ordered today

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