1974 Manley Engines & Components

Valves, Exhaust, Stainless Steel, 1.625 in. Diameter, .311 in. Stem, 5.040 in. Length, Chevy, Set of 8

Part Number: MAN-11303-8

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Estimated Ship Date: Dec 8, 2025 if ordered today

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Crankshafts, SBC 4340 Forged Lightweight Crankshaft. 3.480" stroke, 48-50 lb. total weight, 2.100" rod journal, two piece rear main seal

Part Number: MAN-190310NB

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Estimated Ship Date: Dec 15, 2025 if ordered today

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Valve, Intake, Stainless Steel, 2.100 in. Diameter, .342 in. Stem, 5.440 in. Length, Each

Part Number: MAN-11336-8

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Estimated Ship Date: Dec 4, 2025 if ordered today

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Valves, Intake, Stainless Steel, 1.940 in. Diameter, .341 in. Stem, 5.025 in. Length, Chevy, Set of 8

Part Number: MAN-11356-8

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Estimated Ship Date: Dec 4, 2025 if ordered today

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Valves, Intake, Stainless Steel, 2.300 in. Diameter, .341 in. Stem, 5.344 in. Length, Chevy, Set of 8

Part Number: MAN-11842-8

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Estimated Ship Date: Dec 10, 2025 if ordered today

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

Part Number: MAN-261425L

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Estimated Ship Date: Dec 8, 2025 if ordered today

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Valves, Intake, Stainless Steel, 2.250 in. Diameter, .372 in. Stem, 5.325 in. Length, Chevy, Set of 8

Part Number: MAN-11524-8

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Estimated Ship Date: Dec 8, 2025 if ordered today

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ROTATING ASSEMBLY KIT-SBC 383 3.750/4.030

Part Number: MAN-290130RH

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Estimated Ship Date: Dec 9, 2025 if ordered today

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ROTATING ASSEMBLY KIT-SBC 355 3.480/4.030

Part Number: MAN-290730R

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Estimated Ship Date: Dec 9, 2025 if ordered today

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ROTATING ASSEMBLY KIT-SBC 355 3.480/4.030

Part Number: MAN-290730RH

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Estimated Ship Date: Dec 9, 2025 if ordered today

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ROTATING ASSEMBLY KIT-SBC 383 3.750/4.040

Part Number: MAN-290940R

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Estimated Ship Date: Dec 9, 2025 if ordered today

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ROTATING ASSEMBLY KIT-SBC 383 3.750/4.040

Part Number: MAN-290940RH

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Estimated Ship Date: Dec 9, 2025 if ordered today

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Valves, Exhaust, Titanium, 1.625 in. Diameter, .3415 in. Stem, 5.560 in. Length, Chevy, Ford, Chrysler, Each

Part Number: MAN-11447TB-8

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Estimated Ship Date: Dec 9, 2025 if ordered today

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Valves, Intake, NK-844 Stainless, 1.600 in. Diameter, .3415 in. Stem, 5.140 in. Length, Set of 8

Part Number: MAN-11544-8

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Estimated Ship Date: Dec 9, 2025 if ordered today

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Valve, Exhaust, Extreme Duty, XH-432 Xtreme Alloy, 1.90 in Diameter, 0.3415 in. Stem, 6.45 in Length, Set of 8

Part Number: MAN-11597-8

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Estimated Ship Date: Dec 9, 2025 if ordered today

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KIT-SBC 383 3.750/4.030

Part Number: MAN-290030R

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Estimated Ship Date: Dec 9, 2025 if ordered today

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KIT-SBC 383 3.750/4.030

Part Number: MAN-290030RH

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Estimated Ship Date: Dec 9, 2025 if ordered today

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ROTATING ASSEMBLY KIT-SBC 383 3.750/4.030

Part Number: MAN-290130R

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Estimated Ship Date: Dec 9, 2025 if ordered today

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Valves, Exhaust, Stainless Steel, 1.625 in. Diameter, .342 in. Stem, 4.965 in. Length, Chevy, Set of 8

Part Number: MAN-11329-8

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Estimated Ship Date: Dec 9, 2025 if ordered today

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Pistons, Forged, Flat, 4.030 in. Bore, Chevy, Set of 8

Part Number: MAN-591030-8

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Estimated Ship Date: Dec 10, 2025 if ordered today

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Valves, Exhaust, Stainless Steel, 1.760 in. Diameter, .341 in. Stem, 5.067 in. Length, Ford, Set of 8

Part Number: MAN-11529-8

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Estimated Ship Date: Dec 15, 2025 if ordered today

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Valve, Exhaust, Extreme Duty, XH-432 Xtreme Alloy, 1.900 in. Diameter, 0.3415 in. Stem, 6.450 in. Length, Each

Part Number: MAN-11597-1

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Estimated Ship Date: Dec 15, 2025 if ordered today

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

Part Number: MAN-591040L-1

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Estimated Ship Date: Dec 15, 2025 if ordered today

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Connecting Rods, 4340 H-Beam, Cap Screw, Bushed, 6.385 in., Chevy, Big Block, Set of 8

Part Number: MAN-14062R-8

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ROTATING ASSEMBLY KIT-BBC 548 4.250/4.530 20cc D

Part Number: MAN-38548R

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Estimated Ship Date: Dec 15, 2025 if ordered today

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