I came across an old miller welder for scrap value as welder/gen side was bad. The onan engine started right up for me with no smoke, and I was wondering if the block would be the same as the 16hp onan in the 446 when crank is changed? I have a 444 and have keep an eye out for a 446 with motor problem. I can sell the welder engine but would keep it if cck type is compatible.Thanks John