I am looking for information about where on an evo I could find the numbers that:

1) designate what frame the car is ie: a lancer cedia frame or an evo frame.
2) identify that the motor is genuinely a 4G63 and not a different lancer motor.
3) if not a number identifying the motor, how could i tell the difference between a 4G63 motor
and another such as a 4G15? are there any exterior differences? tell tale signs?

Basically, I am living in Thailand and I'm lookin to buy an evo. Problem is, almost all evos in Thailand are taken apart and literally put back together here before sold. I just want to be able to know if I am looking at a genuine evo 6 and up or not (at least the chassis and engine for starters).

Thanks for all responses in advance.