The crank in my Mercruiser 250 looked like some sort of steel crank.It had a lot of machine work on it and balance holes drilled and some that were welded up part ways. All kind of purple lay out fluid and numbers painted on it. I know for sure this motor had never been out of the boat I took it out of. Compared to the crank in another 250 motor out of a 69 chevy pickup it was totaled different. When i had my motor balanced the crank was perfect. On the subject of cranks I have a 292 crank that IS A CAST crank with 12 counter weights on it and 3 dowel pins on the flange. I wonder what this came out of ???
