TheHaflinger.com

Looking at buying a small 15-20 hp diesel recoil start for my haflinger. And custom adapting it.
Air cooled fans and all.

Any idea on the engine bay specs. Just some new lines. Mounts and a flywheel clutch adapter. Basic

As far as I know you will have to custom make any / all of those things to be able to fit ANY other engine unit into the engine bay. The only engine I know that ever had a reasonably commercial adapter available for it was to fit a VW flat four engine in.

John