Working on a project, in the process of canabalizing a 9hp OHV Simplicity 970 and upgrading my 8hp L-Head D/A Sno-Pro II (twin to Simplicity 870) with it, will there be much of an improvement in power? The main reason I started this was to transfer the easy turn hardware onto the Sno-Pro. I might be dealing with different shaft/axle diameters. Anyone ever attempt this? The 970 is commercial duty rated with heavier duty parts.