This 2005-2007 Silverado 1500 engine is a 5.3L Flex Fuel Vortec V8, identified by VIN code Z (8th digit) and optionally designated as L59. Designed for versatility, this engine can run on gasoline or E85 ethanol blends, offering fuel flexibility without sacrificing performance. It delivers robust torque, dependable towing capability, and everyday reliability, making it ideal for both work and daily driving.
The complete assembly is a direct OEM replacement, ensuring seamless integration into compatible Silverado 1500 models. It includes all essential components and has been professionally tested for mechanical integrity, compression, and operational readiness. This unit offers a cost-effective solution to restore your truck’s original power and efficiency.
Key features include the 5.3L displacement, Flex Fuel capability, and VIN Z/L59 compatibility. Perfect for owners seeking a durable, adaptable engine that maintains factory performance, this assembly is ready to deliver years of trustworthy service.