here is were all the oil plugs go in a small block mopar. 2 behind top timing gear some times coverd by cam retaner plate, or cup plugs. rear of the lifter galleys. one is on the outside right bank. left side is on the inside can be seen through the distributor hole with a mirror. like olds, pontaic v8. plug under oil filter plate 3/8 npt. these last two have ben left out many times there is a seperation plug that goes in the vertical passage from the oil pump, this plug directs oil to the filter, sometimes this plug cannot be removed. this is the same as sb chev.this plug is left out all the time on sb chev. i think all the new sb mopars are the same as old style far as oiling goes. i did see one sb style v6 that was cracked from main bearing to the cam stickboy331