forget the after run oil mate its not needed.if your not going to run the engine for say 6 months then im sure it could be usefull but i doubt shell be left lying arround that long so dont waste your money.also if the place you keep the engine is dry and not damp itll be fine!!.if however its a damp garage then it wont hurt.as for the 46 la shes a good engine i have one and also has plenty of power to move her upto a sports model!!any sports model thats for say a 40 to 42 she would be great in as shes the same size as the la 40 but 25%more power!!.
but as someone said shes maybe not as powerfull as the ax 46 so take this into account if you move it into a sports model.pluss if you put it in a sports model you can use it to get used to the plane before moving onto a more powerfull engine in which case id go onto a irvine 53.most sports models have a lot of scope for power output some from say 36 to a 53 so 46 is a good start.also if you get the 46 la ignore the book for starting and running in,put finger over carb turn it over ten times ,yes ten not four then let her rip also open needle to 3 and a half turns not 1,1/2 like it says!!.also she doesnt start well by hand at first so use an electric starter!!.i tried the way it says in the book and had no luck but after a mate told me to try the settings ive given you she started 1st time and she does that everrytime and runs without misssing a beat .
good luck !!!
take a look at the super sportster from great planes !!
or acro wot from chriss fosse in uk great sports planes even for a beginer!!!.