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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-$62.59
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 $188.99Regular price$251.58-$62.59 Sale price $188.99 -
-$7.45
Vendor:Manley PerformanceManley Big Block Chevrolet Int. 2.190 Head Dia. 5.218 O/A Length .3715 Stem Race Flo Valve (Single)
Regular price $23.99Regular price$31.44-$7.45 Sale price $23.99 -
-$62.59
Vendor:Manley PerformanceManley Chevy Small Block 1.940in Head Diameter Race Flo Intake Valves (Set of 8)
Regular price $188.99Regular price$251.58-$62.59 Sale price $188.99 -
-$7.45Vendor:Manley Performance
Manley Chevy Small Block 1.940in Head Diameter Race Flo Intake Valves (Single)
Regular price $23.99Regular price$31.44-$7.45 Sale price $23.99 -
-$62.59
Vendor:Manley PerformanceManley Small Block Chevy 1.500in Head Diameter Race Flo Exhaust Valves (Set of 8)
Regular price $188.99Regular price$251.58-$62.59 Sale price $188.99 -
-$99.43
Vendor:Manley PerformanceManley Big Block Chevy Stock 3/8in Stem Diameter Severe Duty Intake Valves (Set of 8)
Regular price $301.99Regular price$401.42-$99.43 Sale price $301.99 -
-$67.07
Vendor:Manley PerformanceManley 426 HEMI 2.250 Intake .310inch Stem 5.490inch Length Stainless Intake Valves (Set of 8)
Regular price $202.99Regular price$270.06-$67.07 Sale price $202.99 -
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Vendor:Manley PerformanceManley Big Block Chevy Stock 3/8in Stem Diameter Race Flo Exhaust Valves (Set of 8)
Regular price $188.99Regular price$251.58-$62.59 Sale price $188.99 -
-$62.59
Vendor:Manley PerformanceManley Big Block Chevy Stock 3/8in Stem Diameter Race Flo Intake Valves (Set of 8)
Regular price $188.99Regular price$251.58-$62.59 Sale price $188.99 -
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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 -
-$62.59
Vendor:Manley PerformanceManley Small Block Chevy 3/8in Stem Diameter Race Flo Intake Valves (Set of 8)
Regular price $188.99Regular price$251.58-$62.59 Sale price $188.99 -
-$62.59
Vendor:Manley PerformanceManley Chrysler 440-1 Indy Cylinder Heads 2.250 Dia Race Master Intake Valves (Set of 8)
Regular price $188.99Regular price$251.58-$62.59 Sale price $188.99 -
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Vendor:Manley PerformanceManley Chrysler 440-1 Indy Cylinder Heads Race Master Exhaust Valves (Set of 8)
Regular price $188.99Regular price$251.58-$62.59 Sale price $188.99 -
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Vendor:Manley PerformanceManley Pontiac 400-428-455 1.770 Race Master Exhaust Valves (Set of 8)
Regular price $188.99Regular price$251.58-$62.59 Sale price $188.99 -
Vendor:Manley PerformanceManley Small Block Chevrolet 1.625 Head DIA / .3110in Stem DIA Race Master Exhaust Valves (Set of 8)
Regular price $270.99Regular price -
-$62.59
Vendor:Manley PerformanceManley Chrysler 426 Hemi Race Master Exhaust Valves (Set of 8)
Regular price $188.99Regular price$251.58-$62.59 Sale price $188.99 -
-$62.59
Vendor:Manley PerformanceManley Chrysler 426 Hemi Race Master Exhaust Valves (Set of 8)
Regular price $188.99Regular price$251.58-$62.59 Sale price $188.99 -
Sold outVendor:Manley Performance
Manley Gen II Extreme Duty Custom SS Intake Valve 1.065in Head Dia 4.070in L 0.2345in Stem - SINGLE
Regular price $64.99Regular price$86.30-$21.31 Sale price $64.99 -
-$99.43
Vendor:Manley PerformanceManley Chevy Small Block Severe Duty Valves 2.020in. Head Dia. / 5.010in. OA L (Set of 8)
Regular price $301.99Regular price$401.42-$99.43 Sale price $301.99 -
-$99.43
Vendor:Manley PerformanceManley Chevy Small Block Severe Duty Valves (Set of 8)
Regular price $301.99Regular price$401.42-$99.43 Sale price $301.99 -
-$136.44
Vendor:Manley PerformanceManley Ford 2.3L EcoBoost Exhaust 30.5mm Stainless Extreme Duty Valves
Regular price $548.99Regular price$685.43-$136.44 Sale price $548.99 -
-$51.94
Vendor:Manley PerformanceManley Ford 2.3L EcoBoost Exhaust 33mm Stainless Race Master Valves
Regular price $211.99Regular price$263.93-$51.94 Sale price $211.99 -
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Vendor:Manley PerformanceManley Ford 2.3L EcoBoost Exhaust 30mm Stainless Extreme Duty Valves
Regular price $548.99Regular price$685.43-$136.44 Sale price $548.99 -
-$51.94Vendor:Manley Performance
Manley Ford 2.3L EcoBoost Intake 32.5mm Stainless Race Flo Valves
Regular price $211.99Regular price$263.93-$51.94 Sale price $211.99 -
-$120.09
Vendor:Manley PerformanceManley Nissan Patrol 35.5mm Race Master Exhaust Valves (Set of 12)
Regular price $483.99Regular price$604.08-$120.09 Sale price $483.99 -
-$120.09
Vendor:Manley PerformanceManley Nissan Patrol 35mm Race Master Exhaust Valves (Set of 12)
Regular price $483.99Regular price$604.08-$120.09 Sale price $483.99 -
-$120.09
Vendor:Manley PerformanceManley Nissan Patrol 40.5mm Race Master Intake Valves (Set of 12)
Regular price $483.99Regular price$604.08-$120.09 Sale price $483.99 -
-$120.09
Vendor:Manley PerformanceManley Nissan Patrol 35mm Race Master Exhaust Valves (Set of 12)
Regular price $483.99Regular price$604.08-$120.09 Sale price $483.99 -
-$120.09
Vendor:Manley PerformanceManley Nissan Patrol 40mm Race Master Intake Valves (Set of 12)
Regular price $483.99Regular price$604.08-$120.09 Sale price $483.99 -
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Vendor:Manley PerformanceManley Nissan 2.6L Inline 6-24 Valve RB26DET/T 31.15mm Stainless Race Flo Exhaust Valves
Regular price $448.99Regular price$561.15-$112.16 Sale price $448.99 -
-$78.91
Vendor:Manley PerformanceManley Nissan 2.6L Inline 6-24 Valve RB26DET(T) 35.6mm Stainless Race Flo Intake Valve
Regular price $316.99Regular price$395.90-$78.91 Sale price $316.99 -
-$112.16
Vendor:Manley PerformanceManley Nissan 2.6L Inline 6-24 Valve (RB26DET/T) Exhaust 30.15mm Stainless Race Flo Valves
Regular price $448.99Regular price$561.15-$112.16 Sale price $448.99 -
-$8.78
Vendor:Manley PerformanceManley Nissan 2.6L Inline 6-24 Valve (RB26DET/T) Exhaust 30.15mm Stainless Race Flo Valve (SINGLE)
Regular price $37.99Regular price$46.77-$8.78 Sale price $37.99 -
-$78.91
Vendor:Manley PerformanceManley Nissan 2.6L Inline 6-24 Valve (RB26DET/T) Intake 34.6mm Stainless Race Flo Valves
Regular price $316.99Regular price$395.90-$78.91 Sale price $316.99
