318 to 360 swap do you have to change the pcm?

When swapping a 318 engine for a 360 in a vehicle, it is generally recommended to change the PCM (Powertrain Control Module) to ensure optimal engine performance and compatibility. The 360 engine has different specifications and performance characteristics, which may require different tuning parameters that the original 318 PCM may not support. Additionally, the wiring harness and sensors may differ between the two engines, necessitating adjustments to the PCM for proper operation.