how easy: 20-valve into 10-valve MC engine bay?

[gerard@dockside.co.za]

Hi!

Silly thought ahead ... again.

Chatted to my mechanic's brother on saturday. He has
returned from the States where it deals in exotic motors.
He just bought a Audi 90 with 20-valve turbo motor (??)
for $800. It had a burnt out wiring loom, but he replaced
it. I asked how easy it is to get a 20-valve turbo motor
for me. He said not too difficult. He then offered to send
me 10 of them. Including wiring loom. I didn't get a price
for the 1 unit since he left before I asked. It might be
quite cheap as it will most likely be coming from a smashed
car.

Once again my stupid brain went into overdrive and I began
thinking of dropping in a 20-valve turbo in place of my
10-valve MC engine. I have questions now:

	1. what are the major engine bay differences between
	   the Audi 200 with 10-valve MC engine and Audi 200
	   with 20-valve turbo engine (or other 20-valve motor'd
	   Audi)?

	2. how easy would it be to drop in the 20-valve motor?

	3. is there major differences in location of the
	   brake, cooling and other systems in the engine bay?

Thanks

G.

PS: after an hour of dreaming I decided to just keep my MC
    and fix it up as planned, but it all depends on the
    availability and possibility of getting myself a 20-valve
    into the country. :)

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