I already did switch the oil pan and pick up as well as replaced the oil pump on the 318. And replaced the bolts with arp if I can snag them off the 318 instead buying all that again. Thanks again guys I really appreciate the feedback !
The 273, 318 & 340 share the same oil pan.
The 360 has its on oil pan.
The oil pan gasket for the Magnum and the LA have minor differences. You’ll have to pay attention to the corners of the oil pan and use extra sealant.