GM Chevrolet 5.3L L83 Genuine OEM Bare Cylinder Head Set 12620214Condition: USED REBUILDABLE CORE The GM 12620214 Cylinder Head is a remanufactured direct injection component designed specifically for the 5. 3L L83 Vortec engines found in vehicles such as the Silverado Sierra Suburban Tahoe and Yukon XL (2014 2020). Constructed from durable 319 T7 aluminum it features a 57cc combustion chamber and a flat oval exhaust port that promotes effective airflow for enhanced engine performance. Precision engineered with