Ferrea Pontiac 400/428/455 1.77in 5.23in 12 Deg U/C Dish Head 5000 Series Exhaust Valve - Set of 8

These Ferrea 5000 Series exhaust valves feature a 12-degree intake face angle and a unique undercut dish head design, measuring 1.77 inches in diameter and 5.23 inches in length. They are specifically made for Pontiac 400, 428, and 455 engines, offering a well-built replacement for your cylinder heads.

The undercut dish head is a notable design choice that can help improve airflow into the combustion chamber. This, combined with the 12-degree face angle, contributes to more efficient cylinder filling and exhaust scavenging. Ferrea uses high-grade materials in their 5000 Series valves, ensuring they can handle the heat and stress of regular engine operation. This set includes eight valves, enough for a complete set of cylinder heads on most V8 Pontiac engines.

When rebuilding or upgrading your Pontiac V8's top end, ensuring your valves are in good condition is crucial for performance and reliability. These Ferrea valves are a solid option for those looking to restore or enhance their engine's breathing capabilities.