will the Frantz work with the "standard" bypass plumbing of a 216/235? As in, would it get the appropriate amount of flow?
The Frantz will flow oil somewhat more slowly than a regular bypass filter due to the much more dense filtering media. No problem, as a bypass filter doesn't have to flow enough oil to keep the engine lubricated- - - -it just strains out contaminants, period. Early Frantz filters didn't have a proprietary housing- - - -they were conversions of standard Fram and AC housings. I'm working on making a set of adapter plates to use rolls of cheap toilet paper in a regular Fram-type housing. All it takes is a couple of 1/4" aluminum plates machined to accept an O ring seal to direct the oil flow through the roll of paper.
Jerry