Had a 914 - 2.0 in my 54. Ran it for a few years, nice motor but the type I 1914 ran better times at the track. You don't really need a special flywheel. As long as you use the 210mm all you will really have to do is clearance the bell housing. I can't remember for sure, but I think I still used the same starter. What type of cooling are you going to use?