360 LA oil pan on a 360 Magnum?????????

If you've evr had to straighten or repair the sealing flange of a pan you'll understand...lol. The block, timing cover, and pan are different materials and move and expand differently. It's difficult to make any damage or inconsistancy seal long term there. Plus, I don't beleive straightening steel that has been stretched over a die will give a very good perch for the gasket that is made not to adhere to the surfaces. Give it a shot.. Make sure there's no oil on the durfaces and I'd glue the gasket to the pan first.