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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Sold outVendor:Manley Performance
Manley Super 7 Degree Valve Locks (16 pair)
Regular price $74.99Regular price$82.31-$7.32 Sale price $74.99 -
Sold outVendor:Manley Performance
Manley Super 7 Degree Valve Locks -.050 Height (.3415) Conventional - Set of 16
Regular price $74.99Regular price$82.31-$7.32 Sale price $74.99 -
Sold outVendor:Manley Performance
Manley Super 7 Degree Valve Locks 5/16 (.3110) - Set of 1
Regular price $4.99Regular price$5.15-$0.16 Sale price $4.99 -
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Manley Chevrolet Big Block 2.300 Head Dia .5.494in Stem Severe Duty Intake Valve Kit - Set of 8
Regular price $296.99Regular price$395.52-$98.53 Sale price $296.99 -
Sold outVendor:Manley Performance
Manley Chevrolet Big Block 2.300 Head Dia .5.494in Stem Severe Duty Intake Valve - Single
Regular price $37.99Regular price$49.44-$11.45 Sale price $37.99 -
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Vendor:Manley PerformanceManley Chevy Big Block Chevy 1.880in Severe Duty Exhaust Valves
Regular price $286.99Regular price$382.30-$95.31 Sale price $286.99 -
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Vendor:Manley PerformanceManley Big Block Chevrolet Extreme Duty Exhaust Valve - 5.522in Overall L 1.900in Diameter 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 Extreme Duty Exhaust Valve - 5.522in Overall L 1.900in Diameter - Single
Regular price $61.99Regular price$81.60-$19.61 Sale price $61.99 -
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Vendor:Manley PerformanceManley Ford Coyote 5.0L 32mm 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 Coyote 5.0L 31.5mm 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 Coyote 5.0L 31mm Extreme Duty Exhaust Valves w/ Bead Loc Keeper Groove (Set of 8)
Regular price $489.99Regular price$652.80-$162.81 Sale price $489.99 -
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Vendor:Manley PerformanceManley Ford Coyote 5.0L 31mm 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 L83 5.3L 1.560in Head Diameter 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 L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Set of 8)
Regular price $286.99Regular price$382.30-$95.31 Sale price $286.99 -
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Vendor:Manley PerformanceManley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Severe Duty Exhaust Valve (Single)
Regular price $35.99Regular price$47.79-$11.80 Sale price $35.99 -
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Vendor:Manley PerformanceManley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valves (Set of 8)
Regular price $296.99Regular price$395.52-$98.53 Sale price $296.99 -
Sold outVendor:Manley Performance
Manley Chevy L83 5.3L 1.930in Head Diameter Pro Flo/Severe Duty Intake Valve (Single)
Regular price $37.99Regular price$49.44-$11.45 Sale price $37.99 -
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Vendor:Manley PerformanceManley Chevy LS-3 / L-99 (L-92 Head) 1.600in Head Diameter Pro Flo E.D. 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 94-97 Chevy 5.3L LS/L83 1.930 Head Diameter Pro 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 Chevy Small Block LS3/L99 (L92 Head) 1.6in Head Dia. 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 LS-3 / L-99 (L-92 Head) 2.165in Head Diameter 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 Chevrolet LS3 L-99 (L-92 Head) 1.600in Head Diameter 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 LT-1 6.2L 2.120in Head Diameter Pro Flo/Severe Duty Intake Valves (Set of 8)
Regular price $296.99Regular price$395.52-$98.53 Sale price $296.99 -
Sold outVendor:Manley Performance
Manley Chevy LT-1 6.2L 2.120in Head Diameter Pro Flo/Severe Duty Intake Valve (Single)
Regular price $37.99Regular price$49.44-$11.45 Sale price $37.99 -
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Vendor:Manley PerformanceManley Chevy Small Block LS3/L99 (L92 Head) 2.165in Head Diameter Race Flo 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 Chevy LT-1 1.590 Head Diameter Pro Flo Exhaust Valves (Set of 8)
Regular price $489.99Regular price$652.80-$162.81 Sale price $489.99 -
-$59.61
Vendor:Manley PerformanceManley Chevrolet LT1 6.2L 2.120in Head Diameter Race Flo Intake Valves (Set of 8)
Regular price $179.99Regular price$239.60-$59.61 Sale price $179.99 -
-$95.31
Vendor:Manley PerformanceManley Chevy LT-1 6.2L 1.590in Head Diameter Pro Flo/Severe Duty Exhaust Valves (Set of 8)
Regular price $286.99Regular price$382.30-$95.31 Sale price $286.99 -
-$59.61
Vendor:Manley PerformanceManley Chevrolet LT1 6.2L 1.590in Head Diameter 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 Chevrolet LT1 6.2L 1.590in Head Diameter Race Master Exhaust Valve - Single
Regular price $22.99Regular price$29.94-$6.95 Sale price $22.99 -
Sold outVendor:Manley Performance
Manley SR 20 Brodix Severe Duty Series Stainless Steel Exhaust Valves 2.400in Dia 6.030 L - Set of 8
Regular price $296.99Regular price$395.52-$98.53 Sale price $296.99 -
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Vendor:Manley PerformanceManley 12-14 Chrysler Hemi 6.4L 1.675in Head 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 12-14 Chrysler Hemi 6.4L 1.675in Head Dia Race Master Exhaust Valves (Set of 8)
Regular price $192.99Regular price$257.20-$64.21 Sale price $192.99 -
Sold outVendor:Manley Performance
Manley 12-14 Chrysler Hemi 6.4L 2.180in Head Dia Race Master Intake Race Flo Valves (Set of 8)
Regular price $537.99Regular price$716.57-$178.58 Sale price $537.99 -
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Vendor:Manley PerformanceManley 12-14 Chrysler Hemi 6.4L 2.180in Head Dia Race Master Intake Race Flo Valves (Set of 8)
Regular price $537.99Regular price$716.57-$178.58 Sale price $537.99
