Manley Performance man11685-8

Manley Extreme Duty exhaust valves for Chevy LS-3/L-99 small block with L-92 heads are crafted for extreme-force and high-heat applications such as Top Fuel, Funny Car, marine, and restricted circle-track use. They feature XH-432 XtremeAlloy construction, swirl-polished underhead areas, fully machined combustion faces, chrome stems, and hard tips to enhance airflow, wear resistance, and longevity under severe conditions.

Manley Chevy LS-3/L-99 Small Block (L-92 Head) Extreme Duty Exhaust Valves (Set of 8)