I have an 06' Legacy 2.5i auto with 120,000 miles on... due for timing belt and head gaskets etc. Came across wrecked 09' Legacy with 30k miles on it, manual. Does anyone know which model year engines are compatible? And if manual trans would fit automatic straight on? Thanks!

the short blocks interchange, long blocks i'm not sure.

 

make sure both have EGR or both don't have EGR. that's a common variable over the years with Subaru with little rhyme or reason as to which models/years get EGR or not. i've seen same year/model/trans have EGR and not have it. friends out west seem to see different trends than i do...regional difference or coincidence?

 

auto/manual makes no difference in Subaru's, engines are the same, you'll just bolt your flexplate in place of the flywheel to install in your auto.

 

properly repaired and maintained your engine is likely to outlast all sorts of other components so i wouldn't lean too heavily on that other motor unless it's a compelling fit.

 

for the engines, yards say 2006-2007 compatible and 2008-2009 being compatible. the short blocks are interchangeable between 2005-2010 so you could use the 2006 heads and intake manifold on the 2009 engine block.