dirty fuel injectors
3.4
No
On sides of engine block.
Engine size in terms of mililiter.
3400 v6
yes
If you mean engine and drive train parts....yes.
This swap is not recommended, and does not have any benefit. The 3800 engine is superior to the 3400 engine in every way. Replacement would be complicated and costly, you're better off to buy a vehicle that already has a 3400 in it, if that's really what you want.
Yes it is and its the easyest to do.
It's about 3400 m above sea level.
most are around 3400 rpm
around 3400 lbs. The exact figure depends on which engine, options, etc., but generally about 3400 lbs.