Is the Mitsubishi 380 engine a non-interference type? I can see the Magnas are interference in other threads>

There are two types of engines that use timing belts. They are described as: "Interference Engines" and "Non-interference Engines" The difference lies in the proximity between the valves and the pistons. On an interference engine, if the timing belt slips even one notch, the piston can crash into an open valve causing serious engine damage by bending valves and breaking pistons. Non-interference engines will usually not self destruct, but in either case if the belt fails, the engine will immediately shut down leaving you stranded. The link at the bottom of this article will tell you which category your engine falls under.

Timing belts fail without warning and on some vehicles, are almost as hard to check as they are to change. In most cases, your only protection is to change the belt at the recommended intervals. Timing belt replacement is not a cheap job but it is far less costly than the alternative.

Most overhead cam engines are interference, there are only a few exceptions. If you go to the Gates website and look up their catalog of timing belt applications, it also lists which engines are interference and which are not.

380 will bend valves if the cam timing is wrong or the belt poops itself.