another cylinder head question
 

i used the search function and am still VERY confused.
will a 7120 casting head from a wrangler fiit my 2000 xj w/ coilpacks?
or am i better off going with the 0630 casting number head?
what modificatios(if any)are needed?pictures too please,
i found one of each for cheap on ebay and need to replace it ASAP.
All input appreciated.
if anyone has succesfully done the swap tell me if yours is a 00 or 01 and what head you swapped in.

THANKS!!!