It all depends on how extensive the fire was and how long it burned. It's awfully hard to tell from that picture, too. Wiring harnesses and hoses usually go first, and it doesn't take much to cook them.

Long fires can melt alloys, and that's the worst-case scenario. Short of that the engine itself is usually fine, it's all the external stuff.

That's kind of the same analysis regardless of the engine type, except that gas burns a bit easier.

In any case you just need to inspect it thoroughly.

BTW, you don't need to re-upload it, just right-click the picture, choose "copy image url" and then link it with the photo icon:



Good luck.