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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-$103.31
Vendor:Manley PerformanceManley Chevy LT-1 6.2L 2.120in Head Diameter Pro Flo/Severe Duty Intake Valves (Set of 8)
Regular price $311.99Regular price$415.30-$103.31 Sale price $311.99 -
-$12.92Vendor:Manley Performance
Manley Chevy LT-1 6.2L 2.120in Head Diameter Pro Flo/Severe Duty Intake Valve (Single)
Regular price $38.99Regular price$51.91-$12.92 Sale price $38.99 -
-$67.07
Vendor:Manley PerformanceManley Chevy Small Block LS3/L99 (L92 Head) 2.165in Head Diameter Race Flo Intake Valves (Set of 8)
Regular price $202.99Regular price$270.06-$67.07 Sale price $202.99 -
-$170.45
Vendor:Manley PerformanceManley Chevy LT-1 1.590 Head Diameter Pro Flo Exhaust Valves (Set of 8)
Regular price $514.99Regular price$685.44-$170.45 Sale price $514.99 -
-$62.59
Vendor:Manley PerformanceManley Chevrolet LT1 6.2L 2.120in Head Diameter Race Flo Intake Valves (Set of 8)
Regular price $188.99Regular price$251.58-$62.59 Sale price $188.99 -
-$99.43
Vendor:Manley PerformanceManley Chevy LT-1 6.2L 1.590in Head Diameter Pro Flo/Severe Duty Exhaust Valves (Set of 8)
Regular price $301.99Regular price$401.42-$99.43 Sale price $301.99 -
-$62.59
Vendor:Manley PerformanceManley Chevrolet LT1 6.2L 1.590in Head Diameter Race Master Exhaust Valves (Set of 8)
Regular price $188.99Regular price$251.58-$62.59 Sale price $188.99 -
-$7.45
Vendor:Manley PerformanceManley Chevrolet LT1 6.2L 1.590in Head Diameter Race Master Exhaust Valve - Single
Regular price $23.99Regular price$31.44-$7.45 Sale price $23.99 -
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 $311.99Regular price$415.30-$103.31 Sale price $311.99 -
-$67.07
Vendor:Manley PerformanceManley 12-14 Chrysler Hemi 6.4L 1.675in Head Dia Race Master Exhaust Valves (Set of 8)
Regular price $202.99Regular price$270.06-$67.07 Sale price $202.99 -
-$67.07
Vendor:Manley PerformanceManley 12-14 Chrysler Hemi 6.4L 1.675in Head Dia Race Master Exhaust Valves (Set of 8)
Regular price $202.99Regular price$270.06-$67.07 Sale price $202.99 -
-$187.41Vendor:Manley Performance
Manley 12-14 Chrysler Hemi 6.4L 2.180in Head Dia Race Master Intake Race Flo Valves (Set of 8)
Regular price $564.99Regular price$752.40-$187.41 Sale price $564.99 -
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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 $564.99Regular price$752.40-$187.41 Sale price $564.99 -
-$67.07
Vendor:Manley PerformanceManley 12-14 Chrysler Hemi 6.4L 2.180in Head Dia Race Master Intake Race Flo Valves (Set of 8)
Regular price $202.99Regular price$270.06-$67.07 Sale price $202.99 -
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Vendor:Manley PerformanceManley 12-14 Chrysler Hemi 6.4L 2.180in Head Dia Race Master Exhaust Valves (Set of 8)
Regular price $202.99Regular price$270.06-$67.07 Sale price $202.99 -
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Vendor:Manley PerformanceManley Chrysler Hemi 6.4L (1.654) Race Master Exhaust Valves (Set of 8)
Regular price $202.99Regular price$270.06-$67.07 Sale price $202.99 -
-$7.77
Vendor:Manley PerformanceManley Chrysler Hemi 6.4L (1.654) Race Master Exhaust Valve (Single)
Regular price $25.99Regular price$33.76-$7.77 Sale price $25.99 -
-$67.07
Vendor:Manley PerformanceManley 2011+ Chrysler/Dodge 6.4L Hemi w/ Triple Groove (1.654) Race Master Exhaust Valves (Set of 8)
Regular price $202.99Regular price$270.06-$67.07 Sale price $202.99 -
-$7.77
Vendor:Manley PerformanceManley 2011+ Chrysler/Dodge 6.4L Hemi w/ Triple Groove (1.654) Race Master Exhaust Valves (Single)
Regular price $25.99Regular price$33.76-$7.77 Sale price $25.99 -
-$67.07
Vendor:Manley PerformanceManley Chrysler Hemi 6.4L (2.140) Race Flo Intake Valve (Set of 8)
Regular price $202.99Regular price$270.06-$67.07 Sale price $202.99 -
-$67.07
Vendor:Manley PerformanceManley 2011+ Chrysler / Dodge 6.4L Hemi w/ Triple Groove (2.140) Race Flo Intake Valves (Set of 8)
Regular price $202.99Regular price$270.06-$67.07 Sale price $202.99 -
-$7.77Vendor:Manley Performance
Manley 2011+ Chrysler / Dodge 6.4L Hemi w/ Triple Groove (2.140) Race Flo Intake Valves (Single)
Regular price $25.99Regular price$33.76-$7.77 Sale price $25.99 -
Vendor:Manley PerformanceManley Brodix Big Block SR20 Titanium Intake Valve 2.400in Head Dia 6.035 Length
Regular price $186.99Regular price -
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Vendor:Manley PerformanceManley SB Chevrolet LS7 Titanium Intake Valves 2.250 Head Dia 0.3135 Stem Dia - Set of 8
Regular price $1,453.99Regular price$1,709.65-$255.66 Sale price $1,453.99 -
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Vendor:Manley PerformanceManley SB Chevrolet LS7 Titanium Intake Valves 2.205 Head Dia 0.3135 Stem Dia - Set of 8
Regular price $1,427.99Regular price$1,679.88-$251.89 Sale price $1,427.99 -
-$67.07
Vendor:Manley PerformanceManley Chrysler 426 Hemi Race Master Exhaust Valves (Set of 8)
Regular price $202.99Regular price$270.06-$67.07 Sale price $202.99 -
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Vendor:Manley PerformanceManley Chrysler 426 Hemi 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 Chrysler 426 Hemi 1.900 Head .3100 Stem Standard Length Race Master Exhaust Valves (Set of 8)
Regular price $202.99Regular price$270.06-$67.07 Sale price $202.99 -
-$62.59
Vendor:Manley PerformanceManley Chevy Big Block 2.190in Head Dia 5.344in OAL 5 Deg. Dish 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 361-383 1.810 Head Dia 4.908 OA L Dish Race Flo 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 Chrysler 361-383 2.140 Head Dia 4.873 OA L Dish 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 Ford 289 - 302 - 351W 1.600 Head Dia 5.080 OA L 5 Deg Dish 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 Chevy Big Block 1.940in Diameter 5.422in Length 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 Chevrolet 2.020 Dia Dish 5.026 O/A Length Severe Duty Intake Valves (Set of 8)
Regular price $301.99Regular price$401.42-$99.43 Sale price $301.99 -
-$103.31
Vendor:Manley PerformanceManley Big Block Chevy 2.350in Diameter 0.350in Longer Length Extreme Duty Exhaust Valves - Set of 8
Regular price $311.99Regular price$415.30-$103.31 Sale price $311.99
