Manley Engines & Components

Valve Spring, Dual, 1.290 in. Outside Diameter, 377 lbs./in. Rate, 1.100 in. Coil Bind Height, Set of 16

Part Number: MAN-221436-16

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Valves, Exhaust, Stainless Steel, 1.600 in. Diameter, .341 in. Stem, 5.165 in. Length, Chevy, Set of 8

Part Number: MAN-11751-8

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Estimated Ship Date: May 11, 2026 if ordered today

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Valve, Exhaust, Severe Duty, Stainless Steel, 1.625 in. Diameter, 0.3415 in. Stem, 4.911 in. Length, Set of 8

Part Number: MAN-11541-8

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Valve, Exhaust, Stainless Steel, 1.600 in. Head, 0.314 in. Stem, 5.050 in. Length, Chevy, Set of 8

Part Number: MAN-12337-8

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Estimated Ship Date: May 12, 2026 if ordered today

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Valves, Intake, NK-844 Stainless, 1.940 in. Diameter, 5.140 in. Length, Chevy, Small Block, Set of 8

Part Number: MAN-11748-8

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Valve, Intake, Stainless Steel, 2.100 in. Head, 0.314 in. Stem, 5.030 in. Length, Chevy, Set of 8

Part Number: MAN-12338-8

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Valves, Exhaust, XH-428 Stainless, 1.500 in. Diameter, 5.140 in. Length, Chevy, Small Block, Set of 8

Part Number: MAN-11747-8

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Connecting Rod, ROD-4.6L 300M 5.850 LIGHT

Part Number: MAN-15320R6-1

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SPRING-LS-1 .800 LIFT

Part Number: MAN-221421-16

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Valve Spring Retainer, Chevy LS Valve Spring, Titanium, ID Locator, Machnd Valve Lock & Viton seal,660 Max

Part Number: MAN-26362334KS

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Valve Springs, Single, 1.311 in. Outside Diameter, 353 lbs./in. Rate, 1.100 in. Coil Bind Height, Set of 16

Part Number: MAN-221438-16

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Valve, Intake, Severe Duty, Stainless Steel, 2.125 in. Diameter, 0.3415 in. Stem, 5.440 in. Length, Set of 8

Part Number: MAN-11508-8

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Valve, Intake, Stainless Steel, 2.100 in. Diameter, .342 in. Stem, 5.111 in. Length, Chevrolet, Small Block Gen 1, Each

Part Number: MAN-11744-8

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Valves, Exhaust, XH-428 Stainless, 1.600 in. Diameter, .3415 in. Stem, 4.965 in. Length, Set of 8

Part Number: MAN-11573-8

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Valves, Exhaust, NK-844 Stainless, 2.150 in. Diameter, .3415 in. Stem, 5.540 in. Length, Set of 8

Part Number: MAN-11766-8

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Valves, Exhaust, Stainless Steel, 1.600 in. Diameter, .313 in. Stem, 5.040 in. Length, Chevy, Set of 8

Part Number: MAN-11231-8

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Estimated Ship Date: May 12, 2026 if ordered today

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Valve Spring Retainer, Chevy LS Valve Spring, Steel, ID Locator, Machnd Valve Lock & Viton seal,660 Max

Part Number: MAN-26362134KS

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Valves, VALVE-R/M VQ35DE(T) 32.5mm

Part Number: MAN-11153-12

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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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Valves, Intake, Stainless Steel, 2.020 in. Diameter, .311 in. Stem, 5.010 in. Length, Chevy, Set of 8

Part Number: MAN-11232-8

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VALVE-S/D 2.100,+.400

Part Number: MAN-11752-8

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Valve, SBC intake, 2.080 +.300 Pro Flo, set of 8

Part Number: MAN-11740-8

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Valve Springs, Single, 1.125 in. Outside Diameter, 264 lbs./in. Rate, 1.080 in. Coil Bind Height, Set of 16

Part Number: MAN-221427-16

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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-26382038KS

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Valves, Intake, XH-428 Stainless, 2.080 in. Head Diameter, 4.874 in. Length, Chevy, 5.7, 6.0L, Set of 8

Part Number: MAN-11682-8

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