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Manley Valves» Neck Down Configuration
» XH-426 Stainless Exhaust Material
» NK-842 Stainless Intake Material
» Chrome Stems and Hard Tips
» Swirl Polished and Machined



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131-11361-8 
Manley Performance LS1 Exhaust Valve Set (8) 1.550 Head Diam.
$141.60
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131-11363-8 
Manley Performance LS1 Exhaust Valve Set (8) 1.575 Head Diam.
$141.60
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131-11365-8 
Manley Performance LS1 Exhaust Valve Set (8) 1.600 Head Diam.
$141.60
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131-11360-8 
Manley Performance LS1 Intake Valve Set (8) 2.000 Head Diam.
$141.60
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131-11362-8 
Manley Performance LS1 Intake Valve Set (8) 2.020 Head Diam.
$141.60
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131-11398-8 
Manley Performance LS1 Intake Valve Set (8) 2.080 Head Diam.
$141.60
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131-11521-8 
Manley Performance SBC/LT1/LT4/L98 Exhaust Valve Set (8) 1.500 Head Diam.
$141.60
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131-11501-8 
Manley Performance SBC/LT1/LT4/L98 Exhaust Valve Set (8) 1.560 Head Diam.
$141.60
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131-11565-8 
Manley Performance SBC/LT1/LT4/L98 Exhaust Valve Set (8) 1.600 Head Diam.
$141.60
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131-11522-8 
Manley Performance SBC/LT1/LT4/L98 Intake Valve Set (8) 1.940 Head Diam.
$141.60
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131-11500-8 
Manley Performance SBC/LT1/LT4/L98 Intake Valve Set (8) 2.000 Head Diam.
$141.60
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131-11566-8 
Manley Performance SBC/LT1/LT4/L98 Intake Valve Set (8) 2.020 Head Diam.
$141.60
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131-11390-8 
Manley Performance LS1 Intake Valve Set (8) 2.055 Head Diam.
$141.60
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20-10166345 
GM Valve Locks, LS1/LS2/LS3/LS4/LS6/LS7, Gen III/IV (2 required per valve) 
$2.25
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