So is there an established approach to upgrading the 216 to insert bearings? Are some cranks stronger than others? In my personal collection of motors is an early truck type 235 that looks like a 216. Are there parts on those motors that might add reliability to the bottom end of a 216 and make this effort more likely to succeed?
I'm a V-8 guy who happens to run one Jimmy 270. My knowledge of the 216 is really pretty thin...