140PD vs 170PD differences.

[Christopherski]

I've done a lot of research to see if I can nail down the differences between the two engines.

Apart from the obvious power differences what is different between them? Are the internals the same?

So far:
Turbo
Injectors
Map
Intercooler

I know these are different.

Basically my 170 has destroyed a piston ring and thus destroyed most of cylinder 4. SO my plan was buy a 140 and swap parts over unless its going to be swapping internals then no go!

Also it'll be good if we can nail down the differences for others as there is no real list anywhere.

 

[desertstorm]

You could have a look at the various parts listings and compare part numbers between a 140 and 170 engine.
http://www.partsbase.org/audi/audi-a4-avant-a4-eu-2007-10710-piston/

 

[Christopherski]

I'll have a search on there, read that there could be differences in the heads as well?