* 1.6L 4-cylinder engine from the Suzuki Vitara
* 1.8L 4-cylinder engine from the Suzuki Swift GTI
* 2.0L 4-cylinder engine from the Chevrolet Tracker
It is important to note that these engines will require some modifications to fit into the Sidekick. These modifications may include:
* Engine mounts
* Exhaust system
* Fuel system
* Cooling system
It is also important to make sure that the engine you choose is compatible with the Sidekick's transmission and drivetrain. Some of the engines listed above may require a different transmission or driveline than what came standard in the Sidekick.
If you are not confident in your ability to perform these modifications, it is best to consult with a qualified mechanic. They can help you choose the right engine for your Sidekick and make sure that it is installed properly.