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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 1-25 of 110
Description: Exhaust Valve, Severe Duty, 1.720 in Head, 0.372 in Valve Stem, 5.354 in Long, Stainless, Big Block Chevy, Each
Item #: MAN11553-1
Condition: New
Limited Supply: Only 1 Left!
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Ships from Michigan.
Price: $74.00
Sale: $32.12
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Description: Exhaust Valve, Severe Duty, 1.720 in Head, 0.372 in Valve Stem, 5.354 in Long, Stainless, Big Block Chevy, Set of 8 XH-428 Stainless Exhaust Valves, 1.720" Diameter, .3715" Stem, 5.354" Length, (Set of 8)
Item #: MAN11553-8
Condition: New
Limited Supply: Only 4 Left!
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Ships from Michigan.
Price: $592.00
Sale: $217.68
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Description: Exhaust Valve, Severe Duty, 1.880 in Head, 0.342 in Valve Stem, 5.422 in Long, Stainless, Big Block Chevy, Each Stainless Steel Exhaust Valve, 1.880" Diameter, .341" Stem, 5.422" Length, Chevrolet
Item #: MAN11843-1
Condition: New
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Price: $74.00
Sale: $32.12
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Description: Exhaust Valve, Severe Duty, 1.880 in Head, 0.342 in Valve Stem, 5.522 in Long, Stainless, Big Block Chevy, Each Stainless Steel Exhaust Valve, 1.880" Diameter, .341" Stem, 5.522" Length, Chevrolet
Item #: MAN11845-1
Condition: New
Limited Supply: Only 1 Left!
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Ships from Michigan.
Price: $74.00
Sale: $32.12
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Description: Exhaust Valve, Severe Duty, 1.880 in Head, 0.372 in Valve Stem, 5.354 in Long, Stainless, Big Block Chevy, Each Stainless Steel Exhaust Valve, 1.880" Diameter, .371" Stem, 5.354" Length, Chevrolet
Item #: MAN11563-1
Condition: New
Limited Supply: Only 3 Left!
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Ships from Michigan.
Price: $74.00
Sale: $29.54
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Description: Exhaust Valve, Severe Duty, 1.880 in Head, 0.342 in Valve Stem, 5.522 in Long, Stainless, Big Block Chevy, Each Stainless Steel Exhaust Valve, 1.880" Diameter, .341" Stem, 5.522" Length, Chevrolet
Item #: MAN11815-1
Condition: New
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Price: $74.00
Sale: $30.23
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Description: Exhaust Valve, Severe Duty, 1.880 in Head, 0.372 in Valve Stem, 5.464 in Long, Stainless, Big Block Chevy, Each Stainless Steel Exhaust Valve, 1.880" Diameter, .371" Stem, 5.474" Length, Chevrolet
Item #: MAN11525-1
Condition: New
Limited Supply: Only 4 Left!
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Ships from Michigan.
Price: $74.00
Sale: $33.07
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Save: $40.93
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Description: Exhaust Valve, Severe Duty, 1.880 in Head, 0.342 in Valve Stem, 5.422 in Long, Stainless, Big Block Chevy, Set of 8 Stainless Steel Exhaust Valves, 1.880" Diameter, .341" Stem, 5.422" Length, Chevrolet , (Set of 8)
Item #: MAN11843-8
Condition: New
Same Day Shipping!
Ships from Michigan.
Price: $592.00
Sale: $222.82
Save: 62%
Save: $369.18
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Description: Exhaust Valve, Severe Duty, 1.880 in Head, 0.342 in Valve Stem, 5.522 in Long, Stainless, Big Block Chevy, Set of 8 Stainless Steel Exhaust Valves, 1.880" Diameter, .341" Stem, 5.522" Length, Chevrolet , (Set of 8)
Item #: MAN11845-8
Condition: New
Limited Supply: Only 3 Left!
Same Day Shipping!
Ships from Michigan.
Price: $592.00
Sale: $210.52
Save: 64%
Save: $381.48
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Description: Exhaust Valve, Severe Duty, 1.880 in Head, 0.372 in Valve Stem, 5.354 in Long, Stainless, Big Block Chevy, Set of 8 Stainless Steel Exhaust Valves, 1.880" Diameter, .371" Stem, 5.354" Length, Chevrolet , (Set of 8)
Item #: MAN11563-8
Condition: New
Limited Supply: Only 7 Left!
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Ships from Michigan.
Price: $592.00
Sale: $223.36
Save: 62%
Save: $368.64
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Description: Exhaust Valve, Severe Duty, 1.880 in Head, 0.342 in Valve Stem, 5.522 in Long, Stainless, Big Block Chevy, Set of 8 Stainless Steel Exhaust Valves, 1.880" Diameter, .341" Stem, 5.522" Length, Chevrolet , (Set of 8)
Item #: MAN11815-8
Condition: New
Limited Supply: Only 9 Left!
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Ships from Michigan.
Price: $592.00
Sale: $208.33
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Save: $383.67
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Description: Exhaust Valve, Severe Duty, 1.900 in Head, 0.342 in Valve Stem, 5.522 in Long, Stainless, Big Block Chevy, Each
Item #: MAN11811-1
Condition: New
Limited Supply: Only 1 Left!
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Ships from Michigan.
Price: $74.00
Sale: $32.12
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Save: $41.88
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Description: Exhaust Valve, Severe Duty, 1.900 in Head, 0.342 in Valve Stem, 5.422 in Long, Stainless, Big Block Chevy, Each XH-428 Stainless Exhaust Valves, 1.900" Diameter, .3415" Stem, 5.422" Length
Item #: MAN11817-1
Condition: New
Limited Supply: Only 3 Left!
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Ships from Michigan.
Price: $74.00
Sale: $29.29
Save: 60%
Save: $44.71
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Description: Exhaust Valve, Severe Duty, 1.900 in Head, 0.342 in Valve Stem, 5.422 in Long, Stainless, Big Block Chevy, Set of 8 Stainless Steel Exhaust Valves, 1.900" Diameter, .341" Stem, 5.422" Length, Chevrolet , (Set of 8)
Item #: MAN11817-8
Condition: New
Limited Supply: Only 3 Left!
Same Day Shipping!
Ships from Michigan.
Price: $592.00
Sale: $223.69
Save: 62%
Save: $368.31
Qty:

Description: Exhaust Valve, Severe Duty, 1.900 in Head, 0.342 in Valve Stem, 5.522 in Long, Stainless, Big Block Chevy, Set of 8 XH-428 Stainless Exhaust Valves, 1.900" Diameter, 5.522" Length, Big Block Chevrolet , (Set of 8)
Item #: MAN11847-8
Condition: New
Limited Supply: Only 2 Left!
Same Day Shipping!
Ships from Michigan.
Price: $592.00
Sale: $229.69
Save: 61%
Save: $362.31
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Description: Exhaust Valve, Severe Duty, 1.900 in Head, 0.342 in Valve Stem, 5.522 in Long, Stainless, Big Block Chevy, Set of 8 Stainless Steel Exhaust Valves, 1.900" Diameter, .341" Stem, 5.522" Length, Chevrolet , (Set of 8)
Item #: MAN11811-8
Condition: New
Limited Supply: Only 1 Left!
Same Day Shipping!
Ships from Michigan.
Price: $592.00
Sale: $226.69
Save: 62%
Save: $365.31
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Description: Exhaust Valve, Severe Duty, 1.900 in Head, 0.372 in Valve Stem, 5.464 in Long, Stainless, Big Block Chevy, Set of 8
Item #: MAN11535-8
Condition: New
Limited Supply: Only 0 Left!
Same Day Shipping!
Ships from Michigan.
Price: $592.00
Sale: $224.29
Save: 62%
Save: $367.71
Description: Exhaust Valve, Severe Duty, 1.940 in Head, 0.372 in Valve Stem, 5.364 in Long, Stainless, Big Block Chevy, Each
Item #: MAN11561-1
Condition: New
Limited Supply: Only 1 Left!
Same Day Shipping!
Ships from Michigan.
Price: $74.00
Sale: $33.07
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Save: $40.93
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Description: Intake Valve, Severe Duty, 2.190 in Head, 0.342 in Valve Stem, 5.344 in Long, Stainless, Big Block Chevy / Mopar / Ford / Cleveland, Each Stainless Steel Intake Valve, 2.190" Diameter, .341" Stem, 5.344" Length, Chevrolet/Ford
Item #: MAN11822-1
Condition: New
Limited Supply: Only 1 Left!
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Ships from Michigan.
Price: $76.60
Sale: $34.01
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Save: $42.59
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Description: Intake Valve, Severe Duty, 2.190 in Head, 0.372 in Valve Stem, 5.325 in Long, Stainless, Big Block Chevy, Each Stainless Steel Intake Valve, 2.190" Diameter, .372" Stem, 5.325" Length
Item #: MAN11538-1
Condition: New
Limited Supply: Only 1 Left!
Same Day Shipping!
Ships from Michigan.
Price: $76.60
Sale: $28.34
Save: 63%
Save: $48.26
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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, Each Stainless Steel Intake Valve, 2.190" Diameter, .372" Stem, 5.218" Length, Chevrolet
Item #: MAN11520-1
Condition: New
Limited Supply: Only 1 Left!
Same Day Shipping!
Ships from Michigan.
Price: $74.00
Sale: $28.34
Save: 62%
Save: $45.66
Qty:

Description: Intake Valve, Severe Duty, 2.190 in Head, 0.342 in Valve Stem, 5.344 in Long, Stainless, Big Block Chevy / Mopar / Ford / Cleveland, Set of 8 Stainless Steel Intake Valves, 2.190" Diameter, .341"...More Details »
Item #: MAN11822-8
Condition: New
Limited Supply: Only 1 Left!
Same Day Shipping!
Ships from Michigan.
Price: $612.80
Sale: $230.72
Save: 62%
Save: $382.08
Qty:

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 Stainless Steel Intake Valves, 2.190" Diameter, .372" Stem, 5.218" Length, Chevrolet , (Set of 8)
Item #: MAN11520-8
Condition: New
Limited Supply: Only 3 Left!
Same Day Shipping!
Ships from Michigan.
Price: $592.00
Sale: $223.69
Save: 62%
Save: $368.31
Qty:

Description: Intake Valve, Severe Duty, 2.250 in Head, 0.372 in Valve Stem, 5.433 in Long, Stainless, Big Block Chevy, Each
Item #: MAN11534-1
Condition: New
Limited Supply: Only 1 Left!
Same Day Shipping!
Ships from Michigan.
Price: $76.60
Sale: $30.23
Save: 61%
Save: $46.37
Qty:

Description: Intake Valve, Severe Duty, 2.250 in Head, 0.372 in Valve Stem, 5.218 in Long, Stainless, Big Block Chevy, Each Stainless Steel Intake Valve, 2.250" Diameter, .372" Stem, 5.218" Length, Chevrolet
Item #: MAN11562-1
Condition: New
Same Day Shipping!
Ships from Michigan.
Price: $74.00
Sale: $27.31
Save: 63%
Save: $46.69
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Items 1-25 of 110

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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