which engine do you have,either-
1,D7F-has a plastic inlet manifold that curls over the rocker cover etc.
or
2,E type engine.rocker cover visible and has energy written on it in white letters.
if your 1.2 is a e type engine then a 1.4 engine visually looks exactly the same so you could do a engine swap and it would be very unlikely that anybody would find out.