Manley Parts and Accessories

BOLT-3/8 ARP 625+

Part Number: MAN-42320-1

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Estimated Ship Date: Nov 26, 2025 if ordered today

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PIST-4.600/1.120/42cc HD

Part Number: MAN-697980-1

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Valves, Race Master, 10 degree Dish, XH-426 Stainless Steel, 35.5mm Head Diameter, 4.405 in. Length, Set of 4

Part Number: MAN-11653-4

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Piston, PIST-1.250 CD/FT 4.035

Part Number: MAN-591635R-1

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Valve, Exhaust, XH-432 Xtreme Alloy, 1.880 in. Head Diameter, 5.454 in. Length, Chevy, Big Block, Each

Part Number: MAN-11731-1

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valve spring locators

Part Number: MAN-42402-16

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

Part Number: MAN-591140L-1

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Valve, Exhaust, XH-432 Xtreme Alloy, 2.000 in. Head Diameter, 5.020 in. Length, Each

Part Number: MAN-11855-1

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Piston, PIST-1.280 CD/FT 4.030

Part Number: MAN-591730L-1

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Estimated Ship Date: Nov 26, 2025 if ordered today

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Piston, PIST-1.280 CD/FT 4.030

Part Number: MAN-591730R-1

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VALVE SPRINGS

Part Number: MAN-23402-16

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Valve Spring Retainer, Hardened 4140 Chomoly Steel, 10 Degree, 1.550 in. Outside Diameter, .710 in. Inside Diameter, Set of 16

Part Number: MAN-23659-16

2.33 out of 5 stars ( 3 )

Estimated Ship Date: Nov 26, 2025 if ordered today

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Valve Spring Shims, Hardened, 0.645 in. I.D., 1.500 in. O.D., 0.015 in. Thick, Set of 50

Part Number: MAN-03261-50

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Estimated Ship Date: Nov 25, 2025 if ordered today

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Valve, Exhaust, Stainless Steel, 1.625 in. Diameter, .342 in. Stem, 5.640 in. Length, Each

Part Number: MAN-11245-1

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Estimated Ship Date: Nov 25, 2025 if ordered today

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VALVE-GEN II S/D 2.150

Part Number: MAN-11254-1

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Estimated Ship Date: Nov 25, 2025 if ordered today

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Piston, PIST-1.115 CD 3.785 COATED

Part Number: MAN-561105PC-1

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Estimated Ship Date: Nov 26, 2025 if ordered today

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Piston, PIST-1.115 CD 3.780 COATED0

Part Number: MAN-561300PC-1

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Valve, Exhaust, Stainless Steel, 37.50mm Diameter, 116.459mm Length, Each

Part Number: MAN-11631-1

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Estimated Ship Date: Nov 26, 2025 if ordered today

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VALVE-VW R/M 35.5mm

Part Number: MAN-11653B-4

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Estimated Ship Date: Nov 26, 2025 if ordered today

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VALVE SPRING LOCATORS

Part Number: MAN-42131-16

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Estimated Ship Date: Nov 26, 2025 if ordered today

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BOLT-7/16 ARP 625 PLUS 1.450

Part Number: MAN-42252-1

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Estimated Ship Date: Nov 24, 2025 if ordered today

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VALVE-GEN II S/D 56.5mm

Part Number: MAN-11274-1

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Estimated Ship Date: Nov 26, 2025 if ordered today

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Piston, PIST-1.280 CD/FT 4.040

Part Number: MAN-591740L-1

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Piston, PIST-1.280 CD/FT 4.060

Part Number: MAN-591760L-1

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Piston, PIST-1.280 CD/FT 4.060

Part Number: MAN-591760R-1

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