PLEASE help! 360 vs 273 oil pans different?

I have a 360 in my '66 Barracuda and have the same dent in my stock depth Milodon pan, I have my engine out right now. I tapped the dent back out, and I plan to use a 1/4" thick washer/spacer to get the engine off the k-member some to get some clearance.






Other way around. 360 pan is smaller. Beyond me why Ma just had to change that. I believe someone actually did make a spacer. I actually cut a chunk out of two pans and welded one into another "back when" I put the 340 into the FJ-40 Landcruiser, converted a 360 truck pan into a 340 rear sump pan and a 340 car pan into a 360 car pan