engine 2.4d conversion

Hi Everyone, I bought my very first T4 about 3 weeks ago and have carried out a few cosmetic changes already and she looks much better. However she is a 2.4 td, and if im right about 88bhp, i love the van but want more power, What can I do to increase power without replacing the engine etc. I am...

I'm new to all this so I'm not 100% sure how it works, but I'm just looking for some advice. My t4 2.4d engine has given up and I'm looking to convert it to a 1.9tdi. Will a mk3/4 golf 1.9tdi engine go straight in?? Or will it need to be adapted? Also will the 2.4d gearbox bolt on to the...