Originally Posted by Army

Hi Mark,

I didn't mean to be rude about your tractor idea - of course it isn't a lawn mower!
If you need a manual transmission setup or you intend to mount to an existing transmission setup then I'd definitely look more deeply into the replacement's engine's capabilities - may be the manufacturer has some data sheets on the internet?

Is it worthwhile thinking about changing part of the transmission as well as the engine - or is that going too far? I guess the more modular you can keep the swap the better - I wouldn't be looking into replacement flywheels and custom made camshafts (to change the usable rev range) I think that will get pretty pricey pretty quickly and you may be able to get a similar benefit in a different way.