Manley Valve - Intake Valve-S/D 2.080 +.200 - 11858-1
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.
Proven fatigue strength for extreme performance
Chrome stems and hard tips enhance durability
Exotic alloys for superior tensile strength reliability and longevity
Swirl polishing and machined faces improved airflow/optimized efficiency
Manley Performance was founded by Hank Manley in 1966
his desire for speed and to win led him to build his own racing engines. Since that time Manley has continued to evolve
using the knowledge they have gained since the beginning and building on that to continue to bring the best engine components to the market. The goal at Manley Performance remains laser focused on designing and producing the highest quality internal engine components at extremely competitive prices coupled with excellent customer service.
