The differences are so subtle that you wouldnt notice, i've fitted a couple in place of BXE engines and they are still going strong 2/3 years later.
Compression ratio - doesnt make a difference
software in the ecu - doesnt make a difference
the timing side engine mount bolts up differently and the alternator might catch on the a/c pipe at the o/s/f.
Compression ratio - doesnt make a difference
software in the ecu - doesnt make a difference
the timing side engine mount bolts up differently and the alternator might catch on the a/c pipe at the o/s/f.

only got 93k on the clock! All ways serviced of time (normally seat main dealer). Got towed to my local dealer for them to have a little look see!, quoted around 5k to fit new engine (can't afford that) cars only worth 2500-3000 so looking for a second hand bkc lump instead! Any advice greatly recieved