Roots blower physical size

The Blowers on the "V" engines 6v-71, 8v-71, etc.. use an angled bolt pattern as opposed to the inline detroit diesels 6-71, 4-71, etc where the blower bolt pattern bolts straight down or actually sideways (the blower mounts to the side of the engine) in the OE application. In simple terms its harder to bolt a 'V' series blower to a manifold making it less desirable for hot hodding.