Re: identifying 3.3
the 3.3 engine number prefix is E or G. the 4.1 had J, L, D, N or F as it's prefix.
there's a start.
hope that helps
TD Cortina ED XR6 Engine, T5, 9inch, Boyd billets, 4 wheel disc etc
AU XR6 - All the usual goodies not worth bragging about
See them both here <=-- Page Updated 15 October 2006