Unleash Aggressive JDM Engine Power With Manley Performance
Unleash aggressive engine power with the Manley Performance collection at HD Werks, featuring genuine, high-performance components engineered for racing and aftermarket tuning. These original parts deliver custom upgrades that optimize engine performance and boost power output. Designed with Japanese precision, Manley Performance products offer authentic quality and reliable dynamic enhancements for superior driving. Experience improved throttle response with parts built for aggressive tuning. Shop our Manley Performance range for original components that transform your engine into a true performance beast.
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Vendor:Manley PerformanceManley Ford 4.6L/5.4L DOHC 4V 37mm Dia 5.339in Length Bead Loc Race Master Intake Valves (Set of 8)
Regular price $192.99Regular price$257.20-$64.21 Sale price $192.99 -
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Vendor:Manley PerformanceManley Ford 4.6L DOHC (4 Valve) Triple Groove 37mm Race Master Intake Valves - Single
Regular price $24.99Regular price$32.15-$7.16 Sale price $24.99 -
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Vendor:Manley PerformanceManley Ford 4.6L/5.4L DOHC 4V 30mm Dia 4.587in Length Bead Loc Race Master Exhaust Valves (Set of 8)
Regular price $192.99Regular price$257.20-$64.21 Sale price $192.99 -
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Vendor:Manley PerformanceManley Ford 4.6L DOHC (4 Valve) Triple Groove 30mm Race Master Exhaust Valve *Single Valve*
Regular price $24.99Regular price$32.15-$7.16 Sale price $24.99 -
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Vendor:Manley PerformanceManley Ford 6.2L Race Master Intake Valves 43mm HD B (Set of 8)
Regular price $192.99Regular price$257.20-$64.21 Sale price $192.99 -
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Vendor:Manley PerformanceManley Ford 6.2L Race Master Intake Valves 54.5mm B/L (Set of 8)
Regular price $192.99Regular price$257.20-$64.21 Sale price $192.99 -
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Vendor:Manley PerformanceManley Ford 6.2L 42mm Diameter 5.356in O/A Length Bead Lock Race Master Exhaust Valves (Set of 8)
Regular price $192.99Regular price$257.20-$64.21 Sale price $192.99 -
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Vendor:Manley PerformanceManley Ford 6.2L 42mm Diameter 5.356in O/A Length Race Master Exhaust Valves (Set of 8)
Regular price $192.99Regular price$257.20-$64.21 Sale price $192.99 -
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Vendor:Manley PerformanceManley Ford 6.2L 53.5mm Dia Race Master Intake Valves (Set of 8)
Regular price $192.99Regular price$257.20-$64.21 Sale price $192.99 -
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Vendor:Manley PerformanceManley SBC 2.02 Severe Duty Intake Valves (Set of 8)
Regular price $286.99Regular price$382.30-$95.31 Sale price $286.99 -
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Vendor:Manley PerformanceManley SBC 1.6 Severe Duty Exhaust Valves (Set of 8)
Regular price $286.99Regular price$382.30-$95.31 Sale price $286.99 -
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Vendor:Manley PerformanceManley Big Block Ford 429-460 1.880in Diameter 5.655in Length Race Master Exhaust Valves (Set of 8)
Regular price $179.99Regular price$239.60-$59.61 Sale price $179.99 -
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Vendor:Manley PerformanceManley Big Block Ford 429-460 2.400in Diameter 5.725in Length Severe Duty Intake Valves (Set of 8)
Regular price $296.99Regular price$395.52-$98.53 Sale price $296.99 -
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Vendor:Manley PerformanceManley Big Block Chevrolet 1.880 Diameter Stock Length Extreme Duty Exhaust Valves - Set of 8
Regular price $489.99Regular price$652.80-$162.81 Sale price $489.99 -
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Vendor:Manley PerformanceManley Ford 289/302/351W 1.550 Race Flo Exhaust Valves
Regular price $179.99Regular price$239.60-$59.61 Sale price $179.99 -
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Vendor:Manley PerformanceManley Chevy Small Block Stock Height Race Flo Exhaust Valves (Set of 8)
Regular price $179.99Regular price$239.60-$59.61 Sale price $179.99 -
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Vendor:Manley PerformanceManley Big Block Chevrolet 1.880 Head Dia. 5.354 O/A Length Severe Duty Exhaust Valves - Set of 8
Regular price $286.99Regular price$382.30-$95.31 Sale price $286.99 -
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Vendor:Manley PerformanceManley Chevy Big Block Stock 3/8 inch Severe Duty Intake Valves (Set of 8)
Regular price $286.99Regular price$382.30-$95.31 Sale price $286.99 -
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Vendor:Manley PerformanceManley SBC 2.020 Severe Duty Intake Valves (Set of 8)
Regular price $296.99Regular price$395.52-$98.53 Sale price $296.99 -
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Vendor:Manley PerformanceManley SBC 1.600 Severe Duty Exhaust Valves (Set of 8)
Regular price $286.99Regular price$382.30-$95.31 Sale price $286.99 -
Vendor:Manley Performance
Manley S/D 1.840/+.100 Severe Duty Exhaust Valves (Set of 8)
Regular price $395.99Regular price -
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Vendor:Manley PerformanceManley Chevrolet Big Block Severe Duty/Pro Flo 5.325in O/A Length Intake Valves (Set of 8)
Regular price $296.99Regular price$395.52-$98.53 Sale price $296.99 -
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Vendor:Manley PerformanceManley Big Block Chevrolet Int. 2.190 Head Dia. 5.218 O/A Length .3715 Stem Race Flo Valve Set of 8
Regular price $179.99Regular price$239.60-$59.61 Sale price $179.99 -
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Vendor:Manley PerformanceManley Big Block Chevrolet Int. 2.190 Head Dia. 5.218 O/A Length .3715 Stem Race Flo Valve (Single)
Regular price $22.99Regular price$29.94-$6.95 Sale price $22.99 -
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Vendor:Manley PerformanceManley Chevy Small Block 1.940in Head Diameter Race Flo Intake Valves (Set of 8)
Regular price $179.99Regular price$239.60-$59.61 Sale price $179.99 -
Sold outVendor:Manley Performance
Manley Chevy Small Block 1.940in Head Diameter Race Flo Intake Valves (Single)
Regular price $22.99Regular price$29.94-$6.95 Sale price $22.99 -
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Vendor:Manley PerformanceManley Small Block Chevy 1.500in Head Diameter Race Flo Exhaust Valves (Set of 8)
Regular price $179.99Regular price$239.60-$59.61 Sale price $179.99 -
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Vendor:Manley PerformanceManley Big Block Chevy Stock 3/8in Stem Diameter Severe Duty Intake Valves (Set of 8)
Regular price $286.99Regular price$382.30-$95.31 Sale price $286.99 -
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Vendor:Manley PerformanceManley 426 HEMI 2.250 Intake .310inch Stem 5.490inch Length Stainless Intake Valves (Set of 8)
Regular price $192.99Regular price$257.20-$64.21 Sale price $192.99 -
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Vendor:Manley PerformanceManley Big Block Chevy Stock 3/8in Stem Diameter Race Flo Exhaust Valves (Set of 8)
Regular price $179.99Regular price$239.60-$59.61 Sale price $179.99 -
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Vendor:Manley PerformanceManley Big Block Chevy Stock 3/8in Stem Diameter Race Flo Intake Valves (Set of 8)
Regular price $179.99Regular price$239.60-$59.61 Sale price $179.99 -
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Vendor:Manley PerformanceManley Big Block Chevrolet 1.900 Diameter Stock Length Extreme Duty Exhaust Valves - Set of 8
Regular price $489.99Regular price$652.80-$162.81 Sale price $489.99 -
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Vendor:Manley PerformanceManley Big Block Chevrolet 1.900 Diameter Stock Length Extreme Duty Exhaust Valve (Single Valve)
Regular price $61.99Regular price$81.60-$19.61 Sale price $61.99 -
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Vendor:Manley PerformanceManley Small Block Chevy 3/8in Stem Diameter Race Flo Intake Valves (Set of 8)
Regular price $179.99Regular price$239.60-$59.61 Sale price $179.99 -
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Vendor:Manley PerformanceManley Chrysler 440-1 Indy Cylinder Heads 2.250 Dia Race Master Intake Valves (Set of 8)
Regular price $179.99Regular price$239.60-$59.61 Sale price $179.99
