I'm not much help on the parts, but I have two 454 runners complete, oil pan to air cleaner, fan to flywheel for sale. $750 your choice. One is a 75 model automatic, the other is a 81 model standard. All accesories attached to engine included (alt, p/s pump, pulleys, etc..) I don't want to break them up, too hard to find complete.
Jimbo