I had an MGA 1600 mk2 with an 1800cc 3 bearing MGB engine in it. Didn't know about the none standard engine when I bought it but kept it for 5 years and looking back, it was brilliant. It was followed by a Healey 3000 (BJ8) and I have to say that I liked the MGA better. That said I am now on my third Morgan and have no tent ion of changing.
Bob.