2003 Chevrolet Tahoe Engine

The 2003 Chevrolet Tahoe was offered with the LM7 and LR4 engines. These engine codes identify the engine options listed for this model year; they do not, by themselves, provide horsepower, torque, displacement, fuel economy, or other ratings.

Use the catalog entries to distinguish the two engines, rather than treating them as a single specification. The listed facts do not indicate which trims or configurations received each engine, or whether availability differed by drivetrain. Check the vehicle’s documentation for the engine fitted to a specific Tahoe.

Engine specifications and availability can vary by year and configuration, so do not assume these options apply to other model years or trims. If you need a rating or fitment detail not shown here, confirm it on the door jamb or in the owner’s manual.