Slant 6 to 318 swap

the quick list:

1. V8 904
2. Either adapting motor mounts or a V8 K-frame
3. Exhaust plan for the V8
4. If the 318 is from a truck, you'll need a car oil pan and pickup tube
5. kickdown linkage for the V8. Your throttle cable from the /6 will work
6. Does the 318 come with the pulleys/brackets? something to consider
7. Radiator - probably best to go with a V8 radiator, although some have used the /6.
8. Of course, the simple things like alternator wires and such can all be worked with pretty easily.

Relatively a pretty easy swap. A lot of this stuff may already be on your 318.