Finding the right engine - for a hovercraft!

[fourtheboys96]

Thanks for the replies. I am looking into both kinds of engines now, the Nissan sounds interesting from a low maintenance point of view - but do you know how much it weighs? I notice it has a cast iron block, which often tends to make the engines too heavy to be useful.
Any more suggestions gratefully received - I'll keep you updated on the project progress.
Thanks
Rick

a lot of engines here are made from iron block and aluminum heads.

you might want to consider a small engine and add some modifications to increase power.