[rotorwrench]

Like all modifications, Murphy's Law is in place. The aftermarket intake manifold was the first difference. The later type generator in the second difference. These alterations are do-able but a person has to look over all the different mounts to see what will work best with the manifold. The chassis parts books have illustrations of all the different gen front mounts. All the early ones were 3-brush and later manifolds were more for the 2-brush generators that came along at the end of the 30s decade. Power Gen alternators generally have the later type mount. A spacer plate might be the easiest method of adapting what you have. That wouldn't be hard for someone with a milling machine but the average DIY guy has to draw up a plan and take it to a machine shop.