Complete engine rebuild kit designed specifically for 2019-2020 Chevrolet Silverado 1500 and GMC Sierra 1500 models equipped with the 4.3L V6 engine (VIN Code H). This comprehensive kit includes all essential components needed for a proper engine rebuild: a complete gasket set featuring MLS head gaskets, connecting rod bearings, piston rings, and main bearings. Important: Please verify your vehicle's VIN code (8th character) before purchase to ensure compatibility. Note that V-8 main bearings are currently supplied due to V-6 bearing availability, simply use the 4 pairs needed for your V-6 engine. This vehicle-specific kit is manufactured to meet precise specifications for a proper fit and reliable performance. Assembly is required and should be performed by qualified technicians. All components are new and backed by a replacement warranty if found defective prior to installation.