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Valves - Manley Severe Duty "Pro-Flo" 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.

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Items 1-14 of 14
Valves - Manley Severe Duty "Pro-Flo" Valves - Manley Performance - Manley BB Chevy Severe Duty "Pro-Flo" 2.190" Intake Valves
Manley BB Chevy Severe Duty "Pro-Flo" 2.190" Intake Valves
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Description: Intake Valve, Severe Duty, 2.190 in Head, 0.372 in Valve Stem, 5.218 in Long, Stainless, Big Block Chevy, Set of 8
Item #: MAN11832-8
Condition: New
Limited Supply: Only 0 Left!
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Price: $374.80
Sale: $281.10
Save: 25%
Save: $93.70

Valves - Manley Severe Duty "Pro-Flo" Valves - Manley Performance - Manley Intake Valve - 2.065" Head - 0.372" Valve Stem - 5.325" Long - Stainless - Big Block Chevy (Set of 8)
Manley Intake Valve - 2.065" Head - 0.372" Valve Stem - 5.325" Long - Stainless - Big Block Chevy (Set of 8)
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Description: Intake Valve, 2.065 in Head, 0.372 in Valve Stem, 5.325 in Long, Stainless, Big Block Chevy, Set of 8
Item #: MAN11554-8
Condition: New
Limited Supply: Only 1 Left!
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Price: $387.76
Sale: $290.82
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Valves - Manley Severe Duty "Pro-Flo" Valves - Manley Performance - Manley LS1 Manley Severe Duty "Pro-Flo" 2.165" Intake Valves
Manley LS1 Manley Severe Duty "Pro-Flo" 2.165" Intake Valves
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Description: Intake Valve, Race Series, 2.165 in Head, 5/16 in Valve Stem, 4.900 in Long, Stainless, GM LS-Series, Set of 8
Item #: MAN11620-8
Condition: New
Limited Supply: Only 0 Left!
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Price: $249.71
Sale: $198.15
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Valves - Manley Severe Duty "Pro-Flo" Valves - Manley Performance - Manley Performance Pro Flo Valve Intake 2.100" Head 5/16" Valve Stem - 5.030" Long
Manley Performance Pro Flo Valve Intake 2.100" Head 5/16" Valve Stem - 5.030" Long
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Description: Intake Valve, Pro Flo, 2.100 in Head, 5/16 in Valve Stem, 5.030 in Long, Stainless, AFR Head, Small Block Chevy, Set of 8
Item #: MAN12338-8
Condition: New
Limited Supply: Only 2 Left!
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Price: $387.76
Sale: $290.82
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Valves - Manley Severe Duty "Pro-Flo" Valves - Manley Performance - Manley Performance Pro Flo Valve Intake 2.165" Head 5/16" Valve Stem - 4.900" Long
Manley Performance Pro Flo Valve Intake 2.165" Head 5/16" Valve Stem - 4.900" Long
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Description: Intake Valve, Pro Flo, 2.165 in Head, 5/16 in Valve Stem, 4.900 in Long, Stainless, LS3 / L99 / L92, GM LS-Series, Set of 8
Item #: MAN11686-8
Condition: New
Limited Supply: Only 7 Left!
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Price: $374.80
Sale: $281.10
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Valves - Manley Severe Duty "Pro-Flo" Valves - Manley Performance - Manley Performance Pro Flo Valve Intake 2.205" Head 5/16" Valve Stem - 5.200" Long
Manley Performance Pro Flo Valve Intake 2.205" Head 5/16" Valve Stem - 5.200" Long
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Description: Intake Valve, Pro Flo, 2.205 in Head, 5/16 in Valve Stem, 5.200 in Long, Stainless, LS7, GM LS-Series, Set of 8
Item #: MAN11688-8
Condition: New
Limited Supply: Only 3 Left!
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Price: $374.80
Sale: $281.10
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Valves - Manley Severe Duty "Pro-Flo" Valves - Manley Performance - Manley SB Chevy Severe Duty "Pro-Flo" 1.940" Intake Valves (Set of 8)
Manley SB Chevy Severe Duty "Pro-Flo" 1.940" Intake Valves (Set of 8)
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Description: Intake Valve, Severe Duty, 1.940 in Head, 0.342 in Valve Stem, 5.011 in Long, Stainless, Small Block Chevy, Set of 8
Item #: MAN11886-8
Condition: New
Limited Supply: Only 2 Left!
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Price: $387.76
Sale: $290.82
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Valves - Manley Severe Duty "Pro-Flo" Valves - Manley Performance - Manley SB Chevy Severe Duty "Pro-Flo" 2.020" Intake Valves (Set of 8)
Manley SB Chevy Severe Duty "Pro-Flo" 2.020" Intake Valves (Set of 8)
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Description: Intake Valve, Severe Duty, 2.020 in Head, 0.342 in Valve Stem, 5.140 in Long, Stainless, Small Block Chevy / Ford, Set of 8
Item #: MAN11544-8
Condition: New
Limited Supply: Only 1 Left!
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Price: $387.76
Sale: $290.82
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Valves - Manley Severe Duty "Pro-Flo" Valves - Manley Performance - Manley SB Chevy Severe Duty "Pro-Flo" 2.055" Intake Valve
Manley SB Chevy Severe Duty "Pro-Flo" 2.055" Intake Valve
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Description: Intake Valve, Severe Duty, 2.055 in Head, 0.342 in Valve Stem, 5.011 in Long, Stainless, Small Block Chevy, Each
Item #: MAN11824-1
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 "Pro-Flo" Valves - Manley Performance - Manley SB Chevy Severe Duty "Pro-Flo" 2.100" Intake Valves (Set of 8)
Manley SB Chevy Severe Duty "Pro-Flo" 2.100" Intake Valves (Set of 8)
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Description: Intake Valve, Severe Duty, 2.100 in Head, 0.342 in Valve Stem, 5.140 in Long, Stainless, Small Block Chevy, Set of 8
Item #: MAN11862-8
Condition: New
Limited Supply: Only 2 Left!
Same Day Shipping!
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Free Ground Shipping
Price: $387.76
Sale: $290.82
Save: 25%
Save: $96.94

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Valves - Manley Severe Duty "Pro-Flo" Valves - Manley Performance - Manley SB Chevy Severe Duty Pro-Flo 2.080" Intake Valves
Manley SB Chevy Severe Duty Pro-Flo 2.080" Intake Valves
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Description: Intake Valve, Severe Duty, 2.080 in Head, 0.342 in Valve Stem, 5.011 in Long, Stainless, Small Block Chevy, Set of 8
Item #: MAN11772-8
Condition: New
Limited Supply: Only 3 Left!
Same Day Shipping!
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Price: $374.80
Sale: $281.10
Save: 25%
Save: $93.70

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Valves - Manley Severe Duty "Pro-Flo" Valves - Manley Performance - Manley Severe Duty "Pro-Flo" 2.055" Intake Valves - SB Chevy (Set of 8)
Manley Severe Duty "Pro-Flo" 2.055" Intake Valves - SB Chevy (Set of 8)
(0) Reviews: Write first review
Description: Intake Valve, Severe Duty, 2.055 in Head, 0.342 in Valve Stem, 5.011 in Long, Stainless, Small Block Chevy, Set of 8
Item #: MAN11824-8
Condition: New
Limited Supply: Only 0 Left!
Same Day Shipping!
FREE SHIPPING!
Free Ground Shipping
Price: $374.80
Sale: $281.10
Save: 25%
Save: $93.70

Valves - Manley Severe Duty "Pro-Flo" Valves - Manley Performance - Manley Severe Duty Intake Valve - 2.190" Head - 0.372" Valve Stem - 5.446" Long - Stainless - Ford FE-Series - (Set of 8)
Manley Severe Duty Intake Valve - 2.190" Head - 0.372" Valve Stem - 5.446" Long - Stainless - Ford FE-Series - (Set of 8)
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Description: Intake Valve, Severe Duty, 2.190 in Head, 0.372 in Valve Stem, 5.446 in Long, Stainless, Ford FE-Series, Set of 8
Item #: MAN11884-8
Condition: New
Limited Supply: Only 2 Left!
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Price: $424.37
Sale: $318.28
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Save: $106.09

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Valves - Manley Severe Duty "Pro-Flo" Valves - Manley Performance - Manley Severe Duty Intake Valve - 2.400" Head - 0.342" Valve Stem - 6.600" Long Stainless - Big Block Chevy
Manley Severe Duty Intake Valve - 2.400" Head - 0.342" Valve Stem - 6.600" Long Stainless - Big Block Chevy
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Description: Intake Valve, Severe Duty, 2.400 in Head, 0.342 in Valve Stem, 6.600 in Long Stainless, Big Block Chevy, Each
Item #: MAN11582-1
Condition: New
Limited Supply: Only 1 Left!
Same Day Shipping!
Orders over $149 ship free. Oversize items are excluded.
Price: $48.47
Sale: $36.36
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Save: $12.11
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Items 1-14 of 14

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More About Manley Severe Duty "Pro-Flo" 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.