GM GMC Chevrolet LT1 L86 6.2L GEN V Cylinder Head Rebuildable Bare Set 12620549Condition: USED REBUILDABLE CORE The GM 12620549 Cylinder Head is a part designed for 6. 2L engines particularly the LT1 and L86 Gen V series. This cylinder head identified by casting numbers 12620549 and 12685669 is built to ensure optimal engine performance and reliability. Suitable for models like the Chevrolet Camaro SS (2017 2020) and Corvette (2015 2019) this high quality component is made from 319 T7 aluminum enhancing durability and heat