Vee_Que;40865 wroteLol need engineering. Nope. Anyone can do the conversion. I did one on my 264gle v6 the week before I started my mechanic apprenticeship. 8 years ago now. .. In my driveway with basic tools. Was not fun!
A simple 'engineering is not required' probably would have sufficed.
@benny1314 , as Alex and the others have mentioned, it is not required.
My 1990 240 was originally an auto car - On the day I got it, after picking it up and driving it home, we pulled the auto out and started the manual conversion. We had the conversion finished the next day.