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  • Manley Small Block Chevy 1.600in Head Dia Severe Duty Exhaust Valves (Set of 8)
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Manley Small Block Chevy 1.600in Head Dia Severe Duty Exhaust Valves (Set of 8)
Manley Small Block Chevy 1.600in Head Dia Severe Duty Exhaust Valves (Set of 8)
Manley Small Block Chevy 1.600in Head Dia Severe Duty Exhaust Valves (Set of 8)
Manley Small Block Chevy 1.600in Head Dia Severe Duty Exhaust Valves (Set of 8)
Manley Small Block Chevy 1.600in Head Dia Severe Duty Exhaust Valves (Set of 8)
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Manley Small Block Chevy 1.600in Head Dia Severe Duty Exhaust Valves (Set of 8)

Manley Performance
MAN12337-8
Valves
  • LotQuantity:1
$570.02 CAD $431.79 CAD
Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive...
$431.79 CAD
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Manley Small Block Chevy 1.600in Head Dia Severe Duty Exhaust Valves (Set of 8)
Description + Fitment
Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake), offering unmatched tensile strength compared to competitive alloys. In fatigue testing at 40,000 psi and 1400°F, Manley exhaust valves endured 100 million cycles, while competitors failed after just 100,000, proving a 1,000× longer fatigue life. Each valve features chrome stems, hard tips, and swirl-polished underheads with fully machined combustion faces for superior airflow, efficiency, and wear resistance. Built for those who demand race-winning strength and precision, Manley Severe Duty® Valves set the industry standard for performance and endurance.
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