Thanks, Jerry. Always learning something new about these cars & trucks. I went back to my '53 Chevy Master Parts Catalog, since you got me thinking about the side mounts. According to that, I was certainly mistaken about the first year of the car side mounts - started in '52, not '53 (they share a common lower mount P/N). So the '52 engine in your '50 Bel Air would have been set up for the side mounts. Makes sense.
Doug
