*** IS MY 306 actually a 405 ***

[Di3Ny]

You guys have been amazing with all your help, so hats off to you all and thank you.

Along with my other slightly odd questions is now this one;

I've been looking for parts for my Peugeot 306, 1996, 1.8 style 3rd, engine LFV, Phase 1

this has been a challenge mainly because when looking for reference on Google image I keep getting really off results or engine bays which are completely different to mine in style.

but as of late I've found my engine, throttle body ect looks like a Peugeot 405.

Is there some type of 306 variants which are compatible with 405 components?
do some of the earlier 305 just have the engine of the 405's?

or is it possible (as my car is in NZ and was imported from japan) that I was just an engine swap.

Photo of an engine that looks the exact same as mine below :

thanks, Di3Ny