Well now, this gives me ideas for a winter project. I have 2 MK IV blocks sitting in the garage. I have a lot of pistons and rods. I have a couple sets of heads. (and another set coming at the end of Sept!! I need help!!! Cant stop buying!!! ) HHmmmm....I think the 3/8 stroke is probably the biggest I would tackle. But maybe with a little help (Pat?? ) Gets me thinking.