Head should be fully compatible, provided its from the 'same' engine--ie, Turbo or N/A. There are only four types anyway.

One for the Wagon, that has the SLS pump fitting--turbo, or N/A, one for the non-wagon Turbo and one for the non-wagon N/A.

They did change the head-bolts a couple of times, and its best to renew them on a head-job, especially if your'e not sure of the history of the engine.
--Having said that, Ive re-used them in the past with no problems.

Shouldn't be any huge issues changing the heads over--Take loads of pics, and mark the FRONT of the cam-sprocket with tippex etc, to identify which way it goes on--It'll fit both ways and if wrong will shed the chain, causing huge issues. Be worth going over the valves and seals on the 'new' head first before fitting, a set of seals for the valves at the very least should be fitted--Not hard.
--Dont turn crank while the head is off....

Allow yourself say--4-5 hours or so and take your time, don't rush it...

__________________
http://i190.photobucket.com/albums/z...0TDnoplate.jpg

Alastair AKA H.C.II South Wales, U.K. based member

W123, 1985 300TD Wagon, 256K,
-Most recent M.B. purchase, Cost-a-plenty, Gulps BioDiesel extravagantly, and I love it like an old dog.

W114, 1975 280E Custard Yellow,
-Great above decks needs chassis welding--Really will do it this year....