Manley Race Flo series performance valves are a great choice for your bracket, oval track, or high performance street engine. All valves are made from stainless steel (intakes are NK-842; exhausts are XH-426) with chrome stems and hardened valve tips. In addition to being made from high-quality materials, Race series valves are swirl polished and fully machined with the addition of the Pro-Flo head design for better performance.
Manley Race Flo Intake Valves Chevrolet LS3/L-99 w/L-92 Heads Manley intake valves typically are built with their original "Pro-Flo" design which reduces the stem diameter in the fillet area for increased airflow but also less valve weight. This concept is executed on all Chevy LS and Chrysler HEMI parts. Part Number: 11620-8 Price: $185.95 $147.95