Excellent product. But there was an issue with mine. Looking at the picture you see a large diameter hole with two side slots in the steel plate. The one I have has the two side slots machined off center to the large hole so when you take the spacer and place them together making the two large holes concentric the two slots are half covered by the spacer. This makes putting in the hold down bolts impossible. I had to drill two new hole in the steel plate to make it work. Spacer is machined correctly. Issue is the crank flange boss on the C-series engines cranks fits through both large diameter holes in both parts when assembled, so they have to line-up.