ATK Engines DCT21 Chevy L83 5.3L GDI 14-20 Remanufactured Engine

The ATK Engines DCT21 remanufactured Chevy L83 5.3L GDI engine is a modern OEM-style replacement built for 2014-2020 GM applications. Designed for use in gasoline or Flex Fuel vehicles, this 5.3L V8 combines strong everyday performance with the efficiency benefits of direct injection and advanced valvetrain technology. Its aluminum block and aluminum cylinder heads help reduce weight while maintaining the strength and durability needed for trucks and SUVs that see regular street, work, or towing duty.

Equipped with both Variable Valve Timing and Displacement on Demand, the L83 is engineered to balance power and efficiency across a wide range of driving conditions. Gasoline Direct Injection helps improve fuel delivery precision and throttle response, while the .295-inch fuel injector size is an important application-specific detail for proper fitment and compatibility. Remanufactured to restore reliable performance, the ATK DCT21 is a solid replacement choice for drivers needing a correctly configured Gen V 5.3L engine for late-model GM vehicles.

• Chevy L83 5.3L GDI V8 engine for 2014-2020 GM applications
• With D.O.D. & V.V.T. - G.D.I.
• .295" Injector Hole
• Block Cast Number: 12620287
• Head Cast Number: 12620214, 12701520