Which years of engine block will interchange.

I was looking for a engine for a 94 626 and found one in a 96 probe which is 93-97 for me, and I am pretty happy with it but I could of looked for a newer lower mileage IF.................Supposedly the years are

First Generation (1979-1982) - I4, 2.0 liters, SOHC, 2bbl carb
Second Generation (1983- 1987) � I4, 2.0 liters, SOHC, 2bbl carb (1986-87: fuel injection)
Third Generation (1988-1992) - I4, 2.2 liters, SOHC, 3 valves per cylinder, fuel injection
Fourth Generation (1993-1997) - I4, 2.0 liters, DOHC, 4 valves per cylinder, fuel injection
Fifth Generation (1998-2002) - I4, 2.0 liters, DOHC, 4 valves per cylinder, fuel injection


Are the forth and fifth generations engine blocks the same or is there some external part line up issues?

can we put a fifth gen long or short block in a fourth gen car-will the tranny's bolt up?

I'm sure there must be some sensor to computor problems OBD-I vs OBD-II....but if the blocks are the same then you swap whatever sensor parts needed, MAF, EGR, IAC, TEMP etc etc

 

This site might help, but even if it doesn't it is good to know about!!

Mazda Engine History CLICK HERE