Make sure the bolt pattern is the same on the new flex plate. If that'* the same then no need to swap flex plates. Lining them up isn't that hard. I've only had one issue and that was a warped flex plate. Just put the first 2 bolts in but don't tighten them, then line up the last bolt. After that you can tighten them all.

Thanks Dan. I've got the "new" engine about ready to go in (btw the pull went really well).
Question tho, I'm not sure how long since this engine was run. I have the oil pan off, just for a look-see and things look OK. I was thinking of oiling things up a bit so I don't have a dry start. Any suggestions on what I should spray around in there?
Thanks.

Well,
I've got the engine in, went well thanks to all the help.
Started her up last nite, and I had the throttle body screwed up, had a bad coolant leak and some got sucked into the engine. Any suggestions for cleaning it out?

If it is a lot of coolant, pull the spark plugs and crank it over. As long as it is not enough to hydrolock the engine, I wouldn't be too worried about it.

Thanks Randall, that was my though as well.

thought, I meant