After yet another HGF on my 98 Freelander 1.8,this time it won't fix-even with the new-style gaskets it's still not sealing,what I need to know is which other K series engines I could fit as I can't find a 1.8,is a 1.6 out of a Rover 200/400 usable or even a 2.0 litre out of a Rover 820 ?,any feedback would be very greatfully received,thanks.