Hi GOO
The reason for the comments on CATs is that the BMW info on decoding the block engine code shows "k" as standing for CAT and I have already been offered an engine which came out of a J reg 325 which had the code 256 K 1A which denotes 2500, 6 cyl, Cat, with 1A being a version number relating to line and new or remanufacture.
I must admit I was surprised that an engine that old was CAT so maybe the blocks were used at the time in countries which had tighter emissions.
With the comments you make about your engine being transitional it may make better sense to obtain everything needed from one source vehicle to ensure it all matches.
Don't think it will need VIC, I know BMW will supply a letter stating date of manufacture based on the engine number. MOT emissions are based on engine or vehicle age which ever is the oldest, providing dates can be proved.
John
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