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 Big Block Chevrolet Extreme Duty Exh. Valve 1.88in. Head Dia / .3415in. Stem Dia - Set of 8
Regular price $489.99Regular price$652.80-$162.81 Sale price $489.99 -
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Vendor:Manley PerformanceManley SBC 1.880 Severe Duty Intake Valves (Set of 8)
Regular price $489.99Regular price$652.80-$162.81 Sale price $489.99 -
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Vendor:Manley PerformanceManley SBC 2.080 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 Race Master Series Big Block Chevy Stainless Steel 2.30in 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 Chevy 1.880 Dia (+.100 L) Race Master 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 Chevy 1.880 Dia Race Master 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 Chevy Small Block Severe Duty Valves (Set of 8)
Regular price $286.99Regular price$382.30-$95.31 Sale price $286.99 -
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Vendor:Manley PerformanceManley Small Block Chevy 1.600 Dia +.400 Installed Height Extreme Alloy 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 Chevrolet 1.600 Diameter .300 Longer 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 Extreme Duty Stainless Steel Exhaust Valves Small Block Chevy V8 1.600 - Set of 8
Regular price $489.99Regular price$652.80-$162.81 Sale price $489.99 -
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Vendor:Manley PerformanceManley Severe Duty Stainless Steel Exhaust Valves Chrysler V8 1.600 - Set of 8
Regular price $179.99Regular price$239.60-$59.61 Sale price $179.99 -
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Vendor:Manley PerformanceManley Extreme Duty Stainless Steel Exhaust Valves 1.600, +.100 - Set of 8
Regular price $489.99Regular price$652.80-$162.81 Sale price $489.99 -
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Vendor:Manley PerformanceManley Small Block Chevrolet 2.055 Diameter .200 Longer Severe Duty Intake Valves - Set of 8
Regular price $284.99Regular price$378.81-$93.82 Sale price $284.99 -
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Vendor:Manley PerformanceManley Race Series Stainless Steel Exhaust Valves Hemi 5.7L V8 1.575 Bead - Set of 8
Regular price $189.99Regular price$252.01-$62.02 Sale price $189.99 -
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Vendor:Manley PerformanceManley 1.575 Triple Groove Race Master Exhaust Valve for 2009+ Gen III Hemi 5.7L - Set of 8
Regular price $189.99Regular price$252.01-$62.02 Sale price $189.99 -
Sold outVendor:Manley Performance
Manley 09+ Chrysler Hemi 5.7L 2.080in w/ Bead Loc Groove Race Flo Intake Valves (Set of 8) - Hollow
Regular price $716.99Regular price -
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Manley 09+ Chrysler Hemi 5.7L 2.080in w/ Triple Groove Race Flo Intake Valves (Set of 8) - Hollow
Regular price $716.99Regular price -
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Vendor:Manley PerformanceManley Race Series Stainless Steel Intake Valves Hemi 5.7L V8 1.575 Bead - Set of 8
Regular price $189.99Regular price$252.01-$62.02 Sale price $189.99 -
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Vendor:Manley PerformanceManley 09+ Chrysler Hemi 5.7L w/ Triple Groove Race Flo Intake Valves (Set of 8)
Regular price $189.99Regular price$252.01-$62.02 Sale price $189.99 -
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Vendor:Manley PerformanceManley 09+ Chrysler Hemi 5.7L w/ Bead Loc Groove Race Flo Exhaust Valves (Set of 8)
Regular price $189.99Regular price$252.01-$62.02 Sale price $189.99 -
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Vendor:Manley PerformanceManley 09+ Chrysler Hemi 5.7L w/ Triple Groove 1.555in Race Flo Exhaust Valves (Set of 8)
Regular price $189.99Regular price$252.01-$62.02 Sale price $189.99 -
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Vendor:Manley PerformanceManley 09+ Chrysler Hemi 5.7L w/ Bead Loc Groove 2.050in Race Flo Exhaust Valves (Set of 8)
Regular price $189.99Regular price$252.01-$62.02 Sale price $189.99 -
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Vendor:Manley PerformanceManley 09+ Chrysler Hemi 5.7L w/ Triple Groove 2.050in Race Flo Exhaust Valves (Set of 8)
Regular price $189.99Regular price$252.01-$62.02 Sale price $189.99 -
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Vendor:Manley PerformanceManley LS-7 Small Block Chevy 1.615 Head DIA / .3136 Stem DIA 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 Chevy LS-7 Small Block Severe Duty/Pro Flo Intake Valves (Set of 8)
Regular price $286.99Regular price$382.30-$95.31 Sale price $286.99 -
Sold outVendor:Manley Performance
Manley LS7 2.205 Severe Duty Pro Flo Intake Valve
Regular price $35.99Regular price$47.79-$11.80 Sale price $35.99 -
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Vendor:Manley PerformanceManley Chevy LS-7 Small Block 1.610in Dia 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 Chevy LS-3/L-99 Small Block (L-92 Head) 2.165 Pro Flo Hollow Stem Intake Valves (Set of 8)
Regular price $661.99Regular price$881.51-$219.52 Sale price $661.99 -
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Vendor:Manley PerformanceManley Chevy LS-3/L-99 Small Block 2.165 Pro Flo 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 Chevy LS-3/L-99 Small Block (L-92 Head) 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 Chevy LS-1/L-2 Small Block 2.100 Severe Duty/Pro Flo 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 Chevy LS-1/LS-2 w LS-6 Head Small Block 1.600 Severe Duty/Pro Flo Intake Valves (Set of 8)
Regular price $489.99Regular price$652.80-$162.81 Sale price $489.99 -
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Vendor:Manley PerformanceManley Chevy LS-1/LS-2 (LS-6) Head Small Block Severe Duty/Pro Flo Hollow Intake Valves (Set of 8)
Regular price $661.99Regular price$881.51-$219.52 Sale price $661.99 -
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Vendor:Manley PerformanceManley Chevy LS-1/LS-2 4.923in Pro Flo/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 Chevy LS-1 Small Block 2.055 Pro Flo Severe Duty Exhaust Valves (Set of 8)
Regular price $286.99Regular price$382.30-$95.31 Sale price $286.99
