As need a new lump due to hg gone,, need some advice,, ov a v3 and v4 are pretty much a straight swap over as regards to whole engine,, is there any other version engines that can be used or better choice?

And is there a difference between a wrx engine and sti? if I am going to use my injectors turbo, inlet etc?

 

surely it would be much less heart ache to pull the engine pop the heads, skim them and replace with MLS head gaskets?

seems a bit drastic to replace engine to cure HG issue ..

 

Been advised do bottom end shell etc as they seem go not long after a hg and rebuilders want alot of £££

 

I did this on my uk turbo wagon. sourced a good v4sti engine and ecu. got the matching maf and plopped it in. runs like a dream :-)