What GM models have a 5.3 liter engine?

Many GM models have featured the 5.3L engine over the years, and the exact lineup changes frequently with model updates. To give you a definitive answer, I'd need to specify a model year. However, the 5.3L V8 has been (and in some cases still is) common in these GM vehicles:

* Chevrolet: Silverado 1500, Tahoe, Suburban, Avalanche, Colorado (some years), Express/Savana vans

* GMC: Sierra 1500, Yukon, Yukon XL, Acadia (some years), Savana vans

* Cadillac: Escalade (some years)

Important Note: The 5.3L engine has been offered in various configurations (different horsepower and torque ratings) across different model years. Always check the specific specifications for the year and trim level of the vehicle you are interested in.