Darn oil pan

Messing around with it today, not really sure how to dimple this thing without busting or cracking the pan, especially where its already kinked it in from hitting. I smacked it a few times with a hammer and it didnt budge so i quit before i broke something. How do you dimple it without cracking it? Also, it IS the 187 pan and has the notch just like the one 440 source sells..not sure why its hitting further from where the notch is. I would have to shim the engine an inch or higher to clear it so that aint going to work..