what is the factory code for the engine size..

the build sheet says engine code is 318-1 886 E code on vin. engine is long gone but its okay a 440 will sufice. has a p code in the adventurer package box andthe kb5714 code for the bucket seats. paint code says py4004 black, so the the paint scheme must be after factory kind of thing.
here are somemore pics

and i'll repost this since it got moved

pics are as I was unloading it obviously. I have since moved the seat inside the cab to move it out of the elements. I've also hung the grill for more curb apeal. gotta keep the neighbors happy. My oldest son now 14 has always wanted my 77 Trailduster, but I'm not sure I can give it up lol. I think this truck truck will hold him over a little while. although he's not fond of the paint scheme as much as my younger son(12) and myself of coarse.