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Valves - Manley Severe Duty Valves
Manley Performance is universally acknowledged as the leading manufacturer of performance and racing valves in the world. The reason for Manleys overwhelming success is simple: QUALITY. We offer the best materials in the industry - exclusive materials our competitors do not possess. Our stems are hard coated with .0002" thick chrome rather than a few millionths of flash. Our hard tips are superior to competitors puddled stellite which can crack and erode off the stem. Our valve head and underhead shapes have been in the forefront of the quest for improved flow since the late 1960s. And always each Manley valve has been price targeted to specific markets to ensure the best possible value to the customer. The Manley Severe Duty ® series of valves is the Manley signature in the performance and racing industry. Exhaust material XH-428 and intake material NK-844 is offered by no competitor in the world. And no pair of

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Items 76-100 of 106
Valves - Manley Severe Duty Valves - Manley Performance - Manley Severe Duty "Pro-Flo" 1.600" Exhaust Valves - SB Chevy (Set of 8)
Manley Severe Duty "Pro-Flo" 1.600" Exhaust Valves - SB Chevy (Set of 8)
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Description: Exhaust Valve, Severe Duty, 1.600 in Head, 0.342 in Valve Stem, 5.036 in Long, Stainless, Small Block Chevy, Set of 8
Item #: MAN11823-8
Condition: New
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Valves - Manley Severe Duty Valves - Manley Performance - Manley Severe Duty "Pro-Flo" 1.600" Exhaust Valves - SB Chevy (Set of 8)
Manley Severe Duty "Pro-Flo" 1.600" Exhaust Valves - SB Chevy (Set of 8)
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Description: Exhaust Valve, Severe Duty, 1.600 in Head, 0.342 in Valve Stem, 5.465 in Long, Stainless, Small Block Chevy, Set of 8
Item #: MAN11513-8
Condition: New
Limited Supply: Only 8 Left!
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Valves - Manley Severe Duty Valves - Manley Performance - Manley Severe Duty 1.550 Exhaust Valves - LS1
Manley Severe Duty 1.550 Exhaust Valves - LS1
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Description: Exhaust Valve, 1.550 in Head, 0.3136 in Valve Stem, 4.923 in Long, Stainless, GM LS-Series, Set of 8
Item #: MAN11673-8
Condition: New
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Valves - Manley Severe Duty Valves - Manley Performance - Manley Severe Duty 1.575 Exhaust Valves - LS1
Manley Severe Duty 1.575 Exhaust Valves - LS1
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Description: Exhaust Valve, Severe Duty, 1.575 in Head, 0.3136 in Valve Stem, 4.923 in Long, Stainless, GM LS-Series, Set of 8
Item #: MAN11675-8
Condition: New
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Valves - Manley Severe Duty Valves - Manley Performance - Manley Severe Duty 1.600 Exhaust Valves - LS1
Manley Severe Duty 1.600 Exhaust Valves - LS1
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Description: Exhaust Valve, 1.600 in Head, 0.3136 in Valve Stem, 4.923 in Long, Stainless, GM LS-Series, Set of 8
Item #: MAN11677-8
Condition: New
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Valves - Manley Severe Duty Valves - Manley Performance - Manley Severe Duty 2.300 Intake Valves - +.200
Manley Severe Duty 2.300 Intake Valves - +.200
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Description: Intake Valve, Severe Duty, 2.300 in Head, 0.342 in Valve Stem, 5.444 in Long, Stainless, Big Block Chevy, Set of 8
Item #: MAN11784-8
Condition: New
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Price: $387.76
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Valves - Manley Severe Duty Valves - Manley Performance - Manley Severe Duty 2.350 Intake Valves - +.350
Manley Severe Duty 2.350 Intake Valves - +.350
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Description: Intake Valve, Severe Duty, 2.350 in Head, 0.342 in Valve Stem, 5.610 in Long, Stainless, Big Block Chevy, Set of 8
Item #: MAN11880-8
Condition: New
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Valves - Manley Severe Duty Valves - Manley Performance - Manley Severe Duty Exhaust Valves - SB Chevy - Size: 1.500" - Stem: .3415" - Installed Height: Stock (Set of 8)
Manley Severe Duty Exhaust Valves - SB Chevy - Size: 1.500" - Stem: .3415" - Installed Height: Stock (Set of 8)
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Description: Exhaust Valve, Severe Duty, 1.500 in Head, 0.342 in Valve Stem, 4.911 in Long, Stainless, Small Block Chevy, Set of 8
Item #: MAN11567-8
Condition: New
Limited Supply: Only 0 Left!
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Valves - Manley Severe Duty Valves - Manley Performance - Manley Severe Duty Exhaust Valves - SB Chevy - Size: 1.600" - Stem: .3415" - Installed Height: +.400" Longer (Set of 8)
Manley Severe Duty Exhaust Valves - SB Chevy - Size: 1.600" - Stem: .3415" - Installed Height: +.400" Longer (Set of 8)
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Description: Exhaust Valve, Severe Duty, 1.600 in Head, 0.342 in Valve Stem, 5.365 in Long, Stainless, Small Block Chevy, Set of 8
Item #: MAN11755-8
Condition: New
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Valves - Manley Severe Duty Valves - Manley Performance - Manley Severe Duty Exhaust Valves - SB Chevy - Size: 1.625" - Stem: .3415" - Installed Height: +.600" Longer (Set of 8)
Manley Severe Duty Exhaust Valves - SB Chevy - Size: 1.625" - Stem: .3415" - Installed Height: +.600" Longer (Set of 8)
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Description: Exhaust Valve, Severe Duty, 1.625 in Head, 0.342 in Valve Stem, 5.565 in Long, Stainless, Small Block Chevy, Set of 8
Item #: MAN11763-8
Condition: New
Limited Supply: Only 6 Left!
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Price: $374.80
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Valves - Manley Severe Duty Valves - Manley Performance - Manley Severe Duty Intake Valves - SB Chevy - Size 2.150" (Set of 8)
Manley Severe Duty Intake Valves - SB Chevy - Size 2.150" (Set of 8)
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Description: Intake Valve, Severe Duty, 2.150 in Head, 0.342 in Valve Stem, 5.440 in Long, Stainless, Small Block Chevy, Set of 8
Item #: MAN11760-8
Condition: New
Limited Supply: Only 1 Left!
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Price: $387.76
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Valves - Manley Severe Duty Valves - Manley Performance - Manley Severe Duty Intake Valves - SB Chevy - Size: 1.937" - Stem: .3415" - Installed Height: Stock (Set of 8)
Manley Severe Duty Intake Valves - SB Chevy - Size: 1.937" - Stem: .3415" - Installed Height: Stock (Set of 8)
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Description: Intake Valve, Severe Duty, 1.937 in Head, 0.342 in Valve Stem, 4.911 in Long, Stainless, Small Block Chevy, Set of 8
Item #: MAN11592-8
Condition: New
Limited Supply: Only 1 Left!
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Price: $387.76
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Valves - Manley Severe Duty Valves - Manley Performance - Manley Severe Duty Valve - Exhaust - Head Dia: 1.600"/Stem Dia: .3415"/Inst Ht: .100 Longer/O/A Length: 5.021"/Tip Length: .250"/Underhead Angle/Radius: 30 x 1/2"/Margin: .070"/Seat Width: .100"/Top Head: 25 Dish/Weight: 109G
Manley Severe Duty Valve - Exhaust - Head Dia: 1.600"/Stem Dia: .3415"/Inst Ht: .100 Longer/O/A Length: 5.021"/Tip Length: .250"/Underhead Angle/Radius: 30 x 1/2"/Margin: .070"/Seat Width: .100"/Top Head: 25 Dish/Weight: 109G
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Description: Exhaust Valve, Severe Duty, 1.600 in Head, 0.342 in Valve Stem, 5.021 in Long, Stainless, Small Block Chevy, Each
Item #: MAN11869-1
Condition: New
Limited Supply: Only 1 Left!
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Price: $46.85
Sale: $35.14
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Valves - Manley Severe Duty Valves - Manley Performance - Manley Severe Duty Valve - Exhaust - Head Dia: 1.710"/Stem Dia: .3415"/Inst Ht: Stock/O/A Length: 5.067"/Tip Length: .220"/Underhead Angle/Radius: 10 x 3/8"/Margin: .085"/Seat Width: .100"/Top Head: 7 Dish/Weight: 108G
Manley Severe Duty Valve - Exhaust - Head Dia: 1.710"/Stem Dia: .3415"/Inst Ht: Stock/O/A Length: 5.067"/Tip Length: .220"/Underhead Angle/Radius: 10 x 3/8"/Margin: .085"/Seat Width: .100"/Top Head: 7 Dish/Weight: 108G
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Description: Exhaust Valve, Severe Duty, 1.710 in Head, 0.342 in Valve Stem, 5.067 in Long, Stainless, Ford Cleveland, Each
Item #: MAN11805-1
Condition: New
Limited Supply: Only 1 Left!
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Price: $46.85
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Valves - Manley Severe Duty Valves - Manley Performance - Manley Severe Duty Valve - Intake - Head Dia: 2.020"/Stem Dia: .3415"/Inst Ht: .100 Longer/O/A Length: 5.015"/Tip Length: .250"/Underhead Angle/Radius: 10° x 3/8"/Margin: .070"/Seat Width: .080"/Top Head: 7° Dish/Weight: 111G
Manley Severe Duty Valve - Intake - Head Dia: 2.020"/Stem Dia: .3415"/Inst Ht: .100 Longer/O/A Length: 5.015"/Tip Length: .250"/Underhead Angle/Radius: 10° x 3/8"/Margin: .070"/Seat Width: .080"/Top Head: 7° Dish/Weight: 111G
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Description: Intake Valve, Severe Duty, 2.020 in Head, 0.342 in Valve Stem, 5.026 in Long, Stainless, Small Block Chevy, Each
Item #: MAN11826-1
Condition: New
Limited Supply: Only 3 Left!
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Orders over $149 ship free. Oversize items are excluded.
Price: $46.85
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Valves - Manley Severe Duty Valves - Manley Performance - Manley Severe Duty Valve - Intake - Head Dia: 2.055"/Stem Dia: .3415"/Inst Ht: .100 Longer/O/A Length: 5.026"/Tip Length: .250"/Underhead Angle/Radius: 10 x 3/8"/Margin: .065"/Seat Width: .080"/Top Head: 5 Dish/Weight: 125G
Manley Severe Duty Valve - Intake - Head Dia: 2.055"/Stem Dia: .3415"/Inst Ht: .100 Longer/O/A Length: 5.026"/Tip Length: .250"/Underhead Angle/Radius: 10 x 3/8"/Margin: .065"/Seat Width: .080"/Top Head: 5 Dish/Weight: 125G
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Description: Intake Valve, Severe Duty, 2.055 in Head, 0.342 in Valve Stem, 5.026 in Long, Stainless, Small Block Chevy, Each
Item #: MAN11846-1
Condition: New
Limited Supply: Only 1 Left!
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Orders over $149 ship free. Oversize items are excluded.
Price: $46.85
Sale: $35.14
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Valves - Manley Severe Duty Valves - Manley Performance - Manley Severe Duty Valve - Intake - Head Dia: 2.080"/Stem Dia: .3415"/Inst Ht: .100 Longer/O/A Length: 5.026"/Tip Length: .250"/Underhead Angle/Radius: 10 x 3/8"/Margin: .065"/Seat Width: .080"/Top Head: 5 Dish/Weight: 126G
Manley Severe Duty Valve - Intake - Head Dia: 2.080"/Stem Dia: .3415"/Inst Ht: .100 Longer/O/A Length: 5.026"/Tip Length: .250"/Underhead Angle/Radius: 10 x 3/8"/Margin: .065"/Seat Width: .080"/Top Head: 5 Dish/Weight: 126G
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Description: Intake Valve, Severe Duty, 2.080 in Head, 0.342 in Valve Stem, 5.026 in Long, Stainless, Small Block Chevy, Each
Item #: MAN11844-1
Condition: New
Limited Supply: Only 6 Left!
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Orders over $149 ship free. Oversize items are excluded.
Price: $46.85
Sale: $35.14
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Valves - Manley Severe Duty Valves - Manley Performance - Manley Severe Duty Valve - Intake - Head Dia: 2.080"/Stem Dia: .3415"/Inst Ht: .200 Longer/O/A Length: 5.140"/Tip Length: .290"/Underhead Angle/Radius: 10° x 3/8"/Margin: .065"/Seat Width: .080"/Top Head: 5° Dish/Weight: 129G
Manley Severe Duty Valve - Intake - Head Dia: 2.080"/Stem Dia: .3415"/Inst Ht: .200 Longer/O/A Length: 5.140"/Tip Length: .290"/Underhead Angle/Radius: 10° x 3/8"/Margin: .065"/Seat Width: .080"/Top Head: 5° Dish/Weight: 129G
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Description: Intake Valve, Severe Duty, 2.080 in Head, 0.342 in Valve Stem, 5.140 in Long, Stainless, Small Block Chevy, Each
Item #: MAN11858-1
Condition: New
Limited Supply: Only 2 Left!
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Orders over $149 ship free. Oversize items are excluded.
Price: $48.47
Sale: $36.36
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Valves - Manley Severe Duty Valves - Manley Performance - Manley Severe Duty Valves - Exhaust - Head Dia: 1.600"/Stem Dia: .3415"/Inst Ht: .100 Longer/O/A Length: 5.021"/Tip Length: .250"/Underhead Angle/Radius: 30 x 1/2"/Margin: .070"/Seat Width: .100"/Top Head: 25 Dish/Weight: 109G - (Set of 8)
Manley Severe Duty Valves - Exhaust - Head Dia: 1.600"/Stem Dia: .3415"/Inst Ht: .100 Longer/O/A Length: 5.021"/Tip Length: .250"/Underhead Angle/Radius: 30 x 1/2"/Margin: .070"/Seat Width: .100"/Top Head: 25 Dish/Weight: 109G - (Set of 8)
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Description: Exhaust Valve, Severe Duty, 1.600 in Head, 0.342 in Valve Stem, 5.021 in Long, Stainless, Small Block Chevy, Set of 8
Item #: MAN11869-8
Condition: New
Limited Supply: Only 0 Left!
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Price: $374.80
Sale: $281.10
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Valves - Manley Severe Duty Valves - Manley Performance - Manley Severe Duty Valves - Exhaust - Head Dia: 1.600"/Stem Dia: .3415"/Inst Ht: Stock/O/A Length: 4.936"/Tip Length: .250"/Underhead Angle/Radius: 10 x 3/8"/Margin: .085"/Seat Width: .100"/Top Head: Flat Face/Weight: 100G - (Set of 8)
Manley Severe Duty Valves - Exhaust - Head Dia: 1.600"/Stem Dia: .3415"/Inst Ht: Stock/O/A Length: 4.936"/Tip Length: .250"/Underhead Angle/Radius: 10 x 3/8"/Margin: .085"/Seat Width: .100"/Top Head: Flat Face/Weight: 100G - (Set of 8)
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Description: Exhaust Valve, Severe Duty, 1.600 in Head, 0.342 in Valve Stem, 4.936 in Long, Stainless, Small Block Chevy, Set of 8
Item #: MAN11595-8
Condition: New
Limited Supply: Only 1 Left!
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Price: $374.80
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Valves - Manley Severe Duty Valves - Manley Performance - Manley Severe Duty Valves - Exhaust - Head Dia: 1.625"/Stem Dia: .3415"/Inst Ht: .100 Longer/O/A Length: 5.036"/Tip Length: .250"/Underhead Angle/Radius: 10° x 3/8"/Margin: .085"/Seat Width: .100"/Top Head: 7° Dish/Weight: 102G - (Set of 8)
Manley Severe Duty Valves - Exhaust - Head Dia: 1.625"/Stem Dia: .3415"/Inst Ht: .100 Longer/O/A Length: 5.036"/Tip Length: .250"/Underhead Angle/Radius: 10° x 3/8"/Margin: .085"/Seat Width: .100"/Top Head: 7° Dish/Weight: 102G - (Set of 8)
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Description: Exhaust Valve, Severe Duty, 1.625 in Head, 0.342 in Valve Stem, 5.036 in Long, Stainless, Small Block Chevy, Set of 8
Item #: MAN11537-8
Condition: New
Limited Supply: Only 3 Left!
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Price: $374.80
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Valves - Manley Severe Duty Valves - Manley Performance - Manley Severe Duty Valves - Intake - Head Dia: 2.020"/Stem Dia: .3415"/Inst Ht: .100 Longer/O/A Length: 5.015"/Tip Length: .250"/Underhead Angle/Radius: 10° x 3/8"/Margin: .070"/Seat Width: .080"/Top Head: 7° Dish/Weight: 111G - (Set of 8)
Manley Severe Duty Valves - Intake - Head Dia: 2.020"/Stem Dia: .3415"/Inst Ht: .100 Longer/O/A Length: 5.015"/Tip Length: .250"/Underhead Angle/Radius: 10° x 3/8"/Margin: .070"/Seat Width: .080"/Top Head: 7° Dish/Weight: 111G - (Set of 8)
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Description: Intake Valve, Severe Duty, 2.020 in Head, 0.342 in Valve Stem, 5.026 in Long, Stainless, Small Block Chevy, Set of 8
Item #: MAN11826-8
Condition: New
Limited Supply: Only 8 Left!
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Price: $374.80
Sale: $281.10
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Valves - Manley Severe Duty Valves - Manley Performance - Manley Severe Duty Valves - Intake - Head Dia: 2.020"/Stem Dia: .3415"/Inst Ht: Stock/O/A Length: 4.911"/Tip Length: .250"/Underhead Angle/Radius: 10° x 3/8"/Margin: .050"/Seat Width: .080"/Top Head: 7° Dish/Weight: 111G - (Set of 8)
Manley Severe Duty Valves - Intake - Head Dia: 2.020"/Stem Dia: .3415"/Inst Ht: Stock/O/A Length: 4.911"/Tip Length: .250"/Underhead Angle/Radius: 10° x 3/8"/Margin: .050"/Seat Width: .080"/Top Head: 7° Dish/Weight: 111G - (Set of 8)
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Description: Intake Valve, Severe Duty, 2.020 in Head, 0.342 in Valve Stem, 4.911 in Long, Stainless, Small Block Chevy, Set of 8
Item #: MAN11596-8
Condition: New
Limited Supply: Only 6 Left!
Same Day Shipping!
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Price: $374.80
Sale: $281.10
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Valves - Manley Severe Duty Valves - Manley Performance - Manley Severe Duty Valves - Intake - Head Dia: 2.055"/Stem Dia: .3415"/Inst Ht: .100 Longer/O/A Length: 5.026"/Tip Length: .250"/Underhead Angle/Radius: 10 x 3/8"/Margin: .065"/Seat Width: .080"/Top Head: 5 Dish/Weight: 125G - (Set of 8)
Manley Severe Duty Valves - Intake - Head Dia: 2.055"/Stem Dia: .3415"/Inst Ht: .100 Longer/O/A Length: 5.026"/Tip Length: .250"/Underhead Angle/Radius: 10 x 3/8"/Margin: .065"/Seat Width: .080"/Top Head: 5 Dish/Weight: 125G - (Set of 8)
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Description: Intake Valve, Severe Duty, 2.055 in Head, 0.342 in Valve Stem, 5.026 in Long, Stainless, Small Block Chevy, Set of 8
Item #: MAN11846-8
Condition: New
Limited Supply: Only 6 Left!
Same Day Shipping!
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Price: $374.80
Sale: $281.10
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Valves - Manley Severe Duty Valves - Manley Performance - Manley Severe Duty Valves - Intake - Head Dia: 2.080"/Stem Dia: .3415"/Inst Ht: .100 Longer/O/A Length: 5.026"/Tip Length: .250"/Underhead Angle/Radius: 10 x 3/8"/Margin: .065"/Seat Width: .080"/Top Head: 5 Dish/Weight: 126G - (Set of 8)
Manley Severe Duty Valves - Intake - Head Dia: 2.080"/Stem Dia: .3415"/Inst Ht: .100 Longer/O/A Length: 5.026"/Tip Length: .250"/Underhead Angle/Radius: 10 x 3/8"/Margin: .065"/Seat Width: .080"/Top Head: 5 Dish/Weight: 126G - (Set of 8)
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Description: Intake Valve, Severe Duty, 2.080 in Head, 0.342 in Valve Stem, 5.026 in Long, Stainless, Small Block Chevy, Set of 8
Item #: MAN11844-8
Condition: New
Limited Supply: Only 2 Left!
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Price: $374.80
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Items 76-100 of 106

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More About Manley Severe Duty Valves

Manley Performance is universally acknowledged as the leading manufacturer of performance and racing valves in the world. The reason for Manleys overwhelming success is simple: QUALITY. We offer the best materials in the industry - exclusive materials our competitors do not possess. Our stems are hard coated with .0002" thick chrome rather than a few millionths of flash. Our hard tips are superior to competitors puddled stellite which can crack and erode off the stem. Our valve head and underhead shapes have been in the forefront of the quest for improved flow since the late 1960s. And always each Manley valve has been price targeted to specific markets to ensure the best possible value to the customer. The Manley Severe Duty ® series of valves is the Manley signature in the performance and racing industry. Exhaust material XH-428 and intake material NK-844 is offered by no competitor in the world. And no pair of