CHEVROLET Manley Engines & Components

Valve Spring, Nex Tek, Dual, 1.335 in. Outside Diameter, 780 lbs/in., Set of 16

Part Number: MAN-221422-16

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Estimated Ship Date: Feb 23, 2026 if ordered today

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Connecting Rods, 4340 H-Beam, Cap Screw, Bushed, Chevy, Small Block, Set of 8

Part Number: MAN-14054-8

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Estimated Ship Date: Feb 23, 2026 if ordered today

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Connecting Rods, 4340 H-Beam, Cap Screw, Bushed, 6.125 in., Chevy, Small Block, Set of 8

Part Number: MAN-14056-8

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Estimated Ship Date: Feb 23, 2026 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-261425

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Estimated Ship Date: Feb 23, 2026 if ordered today

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Valve Spring and Retainer, NexTek, Dual, 8mm Stem Diameter, 10 Degree Lock, 1.295 in. Spring O.D., Kit

Part Number: MAN-26361634KS

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Estimated Ship Date: Feb 23, 2026 if ordered today

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Valves, Intake, XH-428 Stainless Steel, 2.165 in. Diameter, .313 in. Stem, 4.900 in. Length, Chevy, Set of 8

Part Number: MAN-11686H-8

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Estimated Ship Date: Feb 20, 2026 if ordered today

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Valves, Intake, Stainless Steel, 2.100 in. Diameter, .313 in. Stem, 4.874 in. Length, Set of 8

Part Number: MAN-11350H-8

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Estimated Ship Date: Feb 20, 2026 if ordered today

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

Part Number: MAN-590830-8

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Estimated Ship Date: Feb 20, 2026 if ordered today

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Pistons, Forged, Flat, 4.060 in. Bore, Chevy, Set of 8

Part Number: MAN-590860-8

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Estimated Ship Date: Feb 20, 2026 if ordered today

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Pistons, Forged, Flat, 4.035 in. Bore, Chevy, Set of 8

Part Number: MAN-590235-8

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Estimated Ship Date: Feb 20, 2026 if ordered today

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Pistons, Forged, Flat, 4.040 in. Bore, Chevy, Set of 8

Part Number: MAN-590240-8

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Estimated Ship Date: Feb 20, 2026 if ordered today

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Pistons, Forged, Flat, 4.040 in. Bore, Chevy, Set of 8

Part Number: MAN-590540-8

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Estimated Ship Date: Feb 20, 2026 if ordered today

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Pistons, Forged, Flat, 4.060 in. Bore, Chevy, Set of 8

Part Number: MAN-590560-8

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Estimated Ship Date: Feb 20, 2026 if ordered today

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Valve Spring and Retainer, NexTek, Dual, 8mm Stem Diameter, 10 Degree Lock, 1.311 in. Spring O.D., Kit

Part Number: MAN-26380638KS

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Estimated Ship Date: Feb 20, 2026 if ordered today

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Pistons, Forged, Flat, 4.035 in. Bore, Chevy, Set of 8

Part Number: MAN-590035-8

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Estimated Ship Date: Feb 20, 2026 if ordered today

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

Part Number: MAN-590130-8

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Estimated Ship Date: Feb 20, 2026 if ordered today

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Pistons, Forged, Flat, 4.035 in. Bore, Chevy, Set of 8

Part Number: MAN-590135-8

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Estimated Ship Date: Feb 20, 2026 if ordered today

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Pistons, Forged, Flat, 4.040 in. Bore, Chevy, Set of 8

Part Number: MAN-590140-8

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Estimated Ship Date: Feb 20, 2026 if ordered today

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

Part Number: MAN-590030-8

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Estimated Ship Date: Feb 23, 2026 if ordered today

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Pistons, Forged, Flat, 4.060 in. Bore, Chevy, Set of 8

Part Number: MAN-590660-8

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Estimated Ship Date: Feb 23, 2026 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: Feb 23, 2026 if ordered today

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

Part Number: MAN-590730-8

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Estimated Ship Date: Feb 23, 2026 if ordered today

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Valve Spring and Retainer, NexTek, Dual, 8mm Stem Diameter, 7 Degree Lock, 1.311 in. Spring O.D., Kit

Part Number: MAN-26382538KS

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Estimated Ship Date: Feb 20, 2026 if ordered today

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Pistons, Forged, Flat, 4.035 in. Bore, Chevy, Set of 8

Part Number: MAN-590535-8

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Estimated Ship Date: Feb 23, 2026 if ordered today

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

Part Number: MAN-590230-8

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Estimated Ship Date: Feb 23, 2026 if ordered today

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