HOW ABOUT A 1979 318 V-8 IN MY '73 SCAMP?

Before you buy the v8 please look at the availability of engine mounts, for conversion from spool mounts from /6 to v8.
The manufacture of these mounts have not made them in a while.
That is correct for Schumaker creative services. Trans-Dapt still makes swap kits for the early K frames.