Hi Mate

Just been chatting with a pal and VW specialist of mine, he think it would be almost impossible to fit a 5 cyl engine in a Golf.

The existing engie/gearbox it a reasonable fit between the chassis legs, so an engine with an extra cylinder length, I would imaging would not go in.

Another thing is what gearbox or driveshafts would you use?

We are not saying in cannot be done, after all anything is possible if you want to do it, but it would need a lot of investigation first

Let us know how you get on.

Stu