I would go to Rock Auto or Summit and enter your vehicle specifications. That will thin out the variations in the parts you need. Then, knowing all of the specifications for the parts you need, you can order the parts you need (Don't necessarily need to order from that website).
If the parts are all stock, you should need a 10.5", 23 spline clutch. While you're in there, I would replace the throwout bearing (Cheap insurance).
You may be able to have your flywheel resurfaced if it's not too damaged. Heck, You may not need to change it at all. Has the clutch been slipping a lot? You could always order one and have it on hand, just in case you do need a new one while you're doing the job. You will need a 130 tooth flywheel for a stock 360 (I believe all small blocks with a 10.5" clutch used the 130-tooth count flywheel).
-Mike
