• Set of 8 Manley Performance Chevy LT-1 6.2L exhaust valves with 1.590-inch head diameter for Pro Flo and Severe Duty engines.
  • Set of 8 Manley Performance Chevy LT-1 6.2L Pro Flo/Severe Duty exhaust valves with 1.590-inch head diameter, engine part.
  • Set of 8 Manley Performance Chevy LT-1 6.2L exhaust valves with 1.590-inch head diameter, designed for Pro Flo and severe duty use.
  • Set of 8 Manley Performance Chevy LT-1 6.2L exhaust valves with 1.590-inch head diameter for Pro Flo and Severe Duty applications.
  • Set of 8 Manley Performance Chevy LT-1 6.2L exhaust valves with 1.590-inch head diameter for Pro Flo and severe duty applications
  • Set of 8 Manley Performance Chevy LT-1 6.2L exhaust valves with 1.590-inch head diameter, designed for Pro Flo and Severe Duty engines.
Set of 8 Manley Performance Chevy LT-1 6.2L exhaust valves with 1.590-inch head diameter for Pro Flo and Severe Duty engines.
Set of 8 Manley Performance Chevy LT-1 6.2L Pro Flo/Severe Duty exhaust valves with 1.590-inch head diameter, engine part.
Set of 8 Manley Performance Chevy LT-1 6.2L exhaust valves with 1.590-inch head diameter, designed for Pro Flo and severe duty use.
Set of 8 Manley Performance Chevy LT-1 6.2L exhaust valves with 1.590-inch head diameter for Pro Flo and Severe Duty applications.
Set of 8 Manley Performance Chevy LT-1 6.2L exhaust valves with 1.590-inch head diameter for Pro Flo and severe duty applications
Set of 8 Manley Performance Chevy LT-1 6.2L exhaust valves with 1.590-inch head diameter, designed for Pro Flo and Severe Duty engines.
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.

Manley Performance

Manley Chevy LT-1 6.2L 1.590in Head Diameter Pro Flo/Severe Duty Exhaust Valves (Set of 8)

SKU MAN12347-8
$301.07
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.
$301.07

Set of 8 Manley Performance Chevy LT-1 6.2L exhaust valves with 1.590-inch head diameter for Pro Flo and Severe Duty engines. Set of 8 Manley Performance Chevy LT-1 6.2L Pro Flo/Severe Duty exhaust valves with 1.590-inch head diameter, engine part. Set of 8 Manley Performance Chevy LT-1 6.2L exhaust valves with 1.590-inch head diameter, designed for Pro Flo and severe duty use. Set of 8 Manley Performance Chevy LT-1 6.2L exhaust valves with 1.590-inch head diameter for Pro Flo and Severe Duty applications. Set of 8 Manley Performance Chevy LT-1 6.2L exhaust valves with 1.590-inch head diameter for Pro Flo and severe duty applications Set of 8 Manley Performance Chevy LT-1 6.2L exhaust valves with 1.590-inch head diameter, designed for Pro Flo and Severe Duty engines.
Set of 8 Manley Performance Chevy LT-1 6.2L exhaust valves with 1.590-inch head diameter for Pro Flo and Severe Duty engines. Set of 8 Manley Performance Chevy LT-1 6.2L Pro Flo/Severe Duty exhaust valves with 1.590-inch head diameter, engine part. Set of 8 Manley Performance Chevy LT-1 6.2L exhaust valves with 1.590-inch head diameter, designed for Pro Flo and severe duty use. Set of 8 Manley Performance Chevy LT-1 6.2L exhaust valves with 1.590-inch head diameter for Pro Flo and Severe Duty applications. Set of 8 Manley Performance Chevy LT-1 6.2L exhaust valves with 1.590-inch head diameter for Pro Flo and severe duty applications Set of 8 Manley Performance Chevy LT-1 6.2L exhaust valves with 1.590-inch head diameter, designed for Pro Flo and Severe Duty engines.

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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Total price$21,144.07

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