Will the engine out of a 1994 Chevy cavalier 2.2L fit and work in 1995 2.2L?

Yes, a 2.2L engine from a 1994 Chevy Cavalier should fit and work in a 1995 Chevy Cavalier with a high degree of probability. These cars are very similar, and the engine itself didn't undergo significant changes between those model years.

However, there are a few caveats:

* Minor variations: There might be minor differences in components like sensors, brackets, or wiring harnesses. While generally interchangeable, you might need to swap some parts from the 1995 car onto the 1994 engine, or vice-versa, for a perfect fit.

* Engine code: The specific engine code (found on a tag on the engine block) might have slight internal differences. While usually functional, it's best to compare the codes to ensure compatibility.

* Automatic vs. Manual: Make absolutely sure the transmissions match (automatic to automatic, manual to manual). Swapping a transmission is a much larger undertaking.

In short, it's highly likely to work, but expect some minor adaptation may be required. It's always best to compare the engine codes and check for any significant differences before attempting the swap.