replacing '92 engine with '93 or '94

I need to replace the engine in my '92 saturn sl1. It is single OHC. Is there any difference between that year and the '93 or '94? Are there any other years that will work with minimal adjustments to the car?
Thanks!

the 92s had a different crank sensor ring.i think a few 93 had it to. if you go with a 93/94, expect to replace the PCM and wiring harness too. ask on saturnfans.com, the techs there can tell you what you would need to change.