• Set of eight Manley Performance Chevy LS-7 small block severe duty exhaust valves, showing shiny metal surfaces and valve heads.
  • Set of 8 Manley Performance Chevy LS-7 Small Block Severe Duty/Pro Flo Exhaust Valves for engine replacement or upgrade.
  • Set of eight Manley Performance Chevy LS-7 Small Block Severe Duty Pro Flo Exhaust Valves showing polished metal with valve stems and heads
  • Set of eight Manley Performance Chevy LS-7 Small Block exhaust valves for severe duty and Pro Flo applications.
  • Set of 8 Manley Performance Chevy LS-7 Small Block Severe Duty Pro Flo Exhaust Valves for engine replacement
  • Set of 8 Manley Performance Chevy LS-7 Small Block Severe Duty/Pro Flo Exhaust Valves showing polished metal valves for high-performance engine use
Set of eight Manley Performance Chevy LS-7 small block severe duty exhaust valves, showing shiny metal surfaces and valve heads.
Set of 8 Manley Performance Chevy LS-7 Small Block Severe Duty/Pro Flo Exhaust Valves for engine replacement or upgrade.
Set of eight Manley Performance Chevy LS-7 Small Block Severe Duty Pro Flo Exhaust Valves showing polished metal with valve stems and heads
Set of eight Manley Performance Chevy LS-7 Small Block exhaust valves for severe duty and Pro Flo applications.
Set of 8 Manley Performance Chevy LS-7 Small Block Severe Duty Pro Flo Exhaust Valves for engine replacement
Set of 8 Manley Performance Chevy LS-7 Small Block Severe Duty/Pro Flo Exhaust Valves showing polished metal valves for high-performance engine use
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 LS-7 Small Block Severe Duty/Pro Flo Exhaust Valves (Set of 8)

SKU MAN11679-8
$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 eight Manley Performance Chevy LS-7 small block severe duty exhaust valves, showing shiny metal surfaces and valve heads. Set of 8 Manley Performance Chevy LS-7 Small Block Severe Duty/Pro Flo Exhaust Valves for engine replacement or upgrade. Set of eight Manley Performance Chevy LS-7 Small Block Severe Duty Pro Flo Exhaust Valves showing polished metal with valve stems and heads Set of eight Manley Performance Chevy LS-7 Small Block exhaust valves for severe duty and Pro Flo applications. Set of 8 Manley Performance Chevy LS-7 Small Block Severe Duty Pro Flo Exhaust Valves for engine replacement Set of 8 Manley Performance Chevy LS-7 Small Block Severe Duty/Pro Flo Exhaust Valves showing polished metal valves for high-performance engine use
Set of eight Manley Performance Chevy LS-7 small block severe duty exhaust valves, showing shiny metal surfaces and valve heads. Set of 8 Manley Performance Chevy LS-7 Small Block Severe Duty/Pro Flo Exhaust Valves for engine replacement or upgrade. Set of eight Manley Performance Chevy LS-7 Small Block Severe Duty Pro Flo Exhaust Valves showing polished metal with valve stems and heads Set of eight Manley Performance Chevy LS-7 Small Block exhaust valves for severe duty and Pro Flo applications. Set of 8 Manley Performance Chevy LS-7 Small Block Severe Duty Pro Flo Exhaust Valves for engine replacement Set of 8 Manley Performance Chevy LS-7 Small Block Severe Duty/Pro Flo Exhaust Valves showing polished metal valves for high-performance engine use

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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