Chevrolet GMC Avalanche Silverado Suburban Engine 5.3 V8

This used 5.3L V8 is pulled from the Vortec family GM installed across Avalanche, Silverado, and Suburban trucks, spanning the LM7, LC9, LMG, L83, and L84 variants depending on model year. Factory output across that range runs 285 to 355 HP and 325 to 383 lb-ft of torque, so figures for your specific engine depend on which generation you receive.

Match the generation, not just the displacement

Because this family spans roughly two decades of trucks, block material shifts between aluminum and iron depending on version, and newer Gen IV and Gen V examples add active fuel management that earlier engines lack. Before ordering, confirm which generation your Silverado, Suburban, Avalanche, Sierra, or Yukon actually needs rather than assuming any 5.3L will bolt in and run correctly.

Where it fits

Listed applications include Silverado 1500 trucks from 1999 through 2020, Suburban 1500 models from 2000 through 2020, Avalanche 1500 trucks from 2002 through 2013, and GMC Sierra, Yukon, and Yukon XL trucks depending on year. These engines also see use as direct replacements for worn or damaged factory units and as a base for LS-style swaps into older GM platforms, since aftermarket support for this family is extensive.

Condition and shipping

Each engine is compression tested and inspected before it ships from the USA, and it is sold as a used take-out rather than a remanufactured unit. Warranty is available on this engine; contact the seller for specific terms before ordering.