[volvogod]

Check this out on ebay.
The flywheel is not indexed. Set the crank to TDC. The wide space in the index wheel is between the starter and crank sensor. That will be 12 degrees TDC. Paint mark the flywheel at TDC if removing. Also, the outside crank pulley half can walk, and the crank timing mark will be off.
1990-92 VOLVO 740 Engine Assembly 2.3L with Turbo B230FT Tested & Ready to Go! | eBay

 

[volvogod]

Oil extension/cooler o-rings like to leak. Replace #3,#4,#5 0-rings if available.
Check and make sure that both flywheel index square holes match up.
Regina and LH use different square hole configuration. Should be the same for B230FT.
Would recommend on the used replacement engine, soak the ex studs alot/overnight.
Remove and replace the ex header gaskets. The gaskets will vibrate loose, crack and leak exhaust.
The ex gasket flats go to the top. They will fit upside down and work great until you start the engine.
I did that, major exhaust leak. Check ipdusa.com for parts. Replace both engine and trans crossmember mounts. Take lots of pictures where all of the wires and other stuff connect.
Check out Dave's Volvo Page - Volvo Engine Wire Harnesses (prancingmoose.com) for wires and connectors when they break and/or shred into pieces. Lot of other stuff here also.

 

[volvogod]

Thanks for the reply guys. I got a good deal on a fresh na engine for a couple hundred bucks. How much should I expect to shop to charge me to install it? Do you guys know of anyone in the Austin Texas area that be able to install it for cheap. I don't mind helping. I just don't have tools.

You mentioned na engine. na is natural aspirated or non turbo engine, it will not work. The turbo return oil line is in the block. na block does not have the turbo drain hole. Probably different pistons, not sure. Different injectors and fuel brain. The na engine will 100% fit and bolt in with no problems.