industrial slant 6

The main difference right off the bat is typically the camshaft is ground for a steady dedicated rpm. (What ever the machine that engine was designed for) and the distributor. Carb may be also a factor but being such a low horse power maybe not. It may or may not be drilled for power steering brackets.

This is what I’ve found with marine /6 and also /6 in older material handling items like Lulls and forklifts, and generators.