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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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Description: Intake Valve, Severe Duty, 2.055 in Head, 0.342 in Valve Stem, 5.111 in Long, Stainless, Small Block Chevy, Set of 8
Item #: MAN11734-8
Condition:
New
Limited Supply: Only 2 Left!
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Price: $374.80
Sale: $281.10
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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, Each
Item #: MAN11784-1
Condition:
New
Limited Supply: Only 3 Left!
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Orders over $149 ship free. Oversize items are excluded.
Price: $48.47
Sale: $36.36
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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, Each
Item #: MAN11880-1
Condition:
New
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Orders over $149 ship free. Oversize items are excluded.
Price: $48.47
Sale: $36.36
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Description: Intake Valve, Severe Duty, 2.375 in Head, 0.342 in Valve Stem, 5.600 in Long, Stainless, Brodix BB 383 Head, Big Block Chevy, Set of 8
Item #: MAN12340-8
Condition:
New
Limited Supply: Only 3 Left!
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Price: $387.76
Sale: $290.82
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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, Set of 8
Item #: MAN11582-8
Condition:
New
Limited Supply: Only 1 Left!
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Price: $387.76
Sale: $290.82
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Save: $96.94
Description: Intake Valve, Race Flo, 2.020 in Head, 0.342 in Valve Stem, 5.040 in Long, Stainless, Small Block Chevy, Each
Item #: MAN11796-1
Condition:
New
Limited Supply: Only 2 Left!
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Orders over $149 ship free. Oversize items are excluded.
Price: $29.07
Sale: $21.80
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Save: $7.27
Description: Exhaust Valve, Severe Duty, 1.600 in Head, 0.342 in Valve Stem, 5.036 in Long, Stainless, Small Block Chevy, Each
Item #: MAN11823-1
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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Save: $11.71
Description: Exhaust Valve, Severe Duty, 1.600 in Head, 0.342 in Valve Stem, 5.065 in Long, Stainless, Small Block Chevy, Set of 8
Item #: MAN11749-8
Condition:
New
Limited Supply: Only 3 Left!
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Price: $374.80
Sale: $281.10
Save: 25%
Save: $93.70
Description: Exhaust Valve, Severe Duty, 1.600 in Head, 0.342 in Valve Stem, 5.165 in Long, Stainless, Small Block Chevy / Ford, Set of 8
Item #: MAN11751-8
Condition:
New
Limited Supply: Only 3 Left!
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Price: $374.80
Sale: $281.10
Save: 25%
Save: $93.70
Description: Exhaust Valve, Severe Duty, 1.600 in Head, 0.342 in Valve Stem, 5.121 in Long, Stainless, Small Block Chevy / Ford, Set of 8
Item #: MAN11865-8
Condition:
New
Limited Supply: Only 2 Left!
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Price: $374.80
Sale: $281.10
Save: 25%
Save: $93.70
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 #: MAN11539-8
Condition:
New
Limited Supply: Only 9 Left!
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Price: $374.80
Sale: $281.10
Save: 25%
Save: $93.70
Description: Exhaust Valve, Severe Duty, 1.600 in Head, 0.342 in Valve Stem, 4.911 in Long, Stainless, Small Block Chevy, Set of 8
Item #: MAN11543-8
Condition:
New
Limited Supply: Only 5 Left!
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Price: $374.80
Sale: $281.10
Save: 25%
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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 #: MAN11827-8
Condition:
New
Limited Supply: Only 4 Left!
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Price: $374.80
Sale: $281.10
Save: 25%
Save: $93.70
Description: Exhaust Valve, Severe Duty, 1.500 in Head, 0.342 in Valve Stem, 4.911 in Long, Stainless, Small Block Chevy, Each
Item #: MAN11567-1
Condition:
New
Limited Supply: Only 2 Left!
Same Day Shipping!
Orders over $149 ship free. Oversize items are excluded.
Price: $46.85
Sale: $35.14
Save: 25%
Save: $11.71
Description: Exhaust Valve, Severe Duty, 1.500 in Head, 0.342 in Valve Stem, 5.036 in Long, Stainless, Small Block Chevy, Set of 8
Item #: MAN11887-8
Condition:
New
Limited Supply: Only 5 Left!
Same Day Shipping!
FREE SHIPPING!
Free Ground Shipping
Price: $374.80
Sale: $281.10
Save: 25%
Save: $93.70
Description: Exhaust Valve, Severe Duty, 1.600 in Head, 0.342 in Valve Stem, 5.165 in Long, Stainless, Small Block Chevy / Ford, Each
Item #: MAN11751-1
Condition:
New
Same Day Shipping!
Orders over $149 ship free. Oversize items are excluded.
Price: $46.85
Sale: $35.14
Save: 25%
Save: $11.71
Description: Exhaust Valve, Severe Duty, 1.600 in Head, 0.342 in Valve Stem, 5.465 in Long, Stainless, Small Block Chevy, Each
Item #: MAN11513-1
Condition:
New
Limited Supply: Only 2 Left!
Same Day Shipping!
Orders over $149 ship free. Oversize items are excluded.
Price: $46.85
Sale: $35.14
Save: 25%
Save: $11.71
Description: Exhaust Valve, Severe Duty, 1.600 in Head, 0.342 in Valve Stem, 5.365 in Long, Stainless, Small Block Chevy, Each
Item #: MAN11755-1
Condition:
New
Limited Supply: Only 3 Left!
Same Day Shipping!
Orders over $149 ship free. Oversize items are excluded.
Price: $46.85
Sale: $35.14
Save: 25%
Save: $11.71
Description: Exhaust Valve, Severe Duty, 1.600 in Head, 0.342 in Valve Stem, 5.121 in Long, Stainless, Small Block Chevy / Ford, Each
Item #: MAN11865-1
Condition:
New
Limited Supply: Only 2 Left!
Same Day Shipping!
Orders over $149 ship free. Oversize items are excluded.
Price: $46.85
Sale: $35.14
Save: 25%
Save: $11.71
Description: Exhaust Valve, Severe Duty, 1.600 in Head, 0.342 in Valve Stem, 5.036 in Long, Stainless, Small Block Chevy, Each
Item #: MAN11539-1
Condition:
New
Same Day Shipping!
Orders over $149 ship free. Oversize items are excluded.
Price: $46.85
Sale: $35.14
Save: 25%
Save: $11.71
Description: Exhaust Valve, Severe Duty, 1.600 in Head, 0.311 in Valve Stem, 5.040 in Long, Stainless, Small Block Chevy, Set of 8
Item #: MAN11231-8
Condition:
New
Limited Supply: Only 0 Left!
Same Day Shipping!
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Price: $374.80
Sale: $281.10
Save: 25%
Save: $93.70
Description: Exhaust Valve, Severe Duty, 1.625 in Head, 0.342 in Valve Stem, 5.565 in Long, Stainless, Small Block Chevy, Each
Item #: MAN11763-1
Condition:
New
Limited Supply: Only 5 Left!
Same Day Shipping!
Orders over $149 ship free. Oversize items are excluded.
Price: $46.85
Sale: $35.14
Save: 25%
Save: $11.71
Description: Intake Valve, Severe Duty, 2.100 in Head, 0.342 in Valve Stem, 5.140 in Long, Stainless, Small Block Chevy, Each
Item #: MAN11862-1
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
Save: 25%
Save: $12.11
Description: Intake Valve, Severe Duty, 2.125 in Head, 0.342 in Valve Stem, 5.125 in Long, Stainless, Small Block Chevy, Set of 8
Item #: MAN11866-8
Condition:
New
Limited Supply: Only 1 Left!
Same Day Shipping!
FREE SHIPPING!
Free Ground Shipping
Price: $387.76
Sale: $290.82
Save: 25%
Save: $96.94
Description: Intake Valve, Severe Duty, 2.150 in Head, 0.342 in Valve Stem, 5.540 in Long, Stainless, Small Block Chevy, Set of 8
Item #: MAN11766-8
Condition:
New
Limited Supply: Only 0 Left!
Same Day Shipping!
FREE SHIPPING!
Free Ground Shipping
Price: $387.76
Sale: $290.82
Save: 25%
Save: $96.94
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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
