Years ago at the time it was cheaper to do the 410 Stroker then the 390. There was so much out there for doing a 360 there was more expensive to buy the 318 Pistons to do a stroker. When my machine shop offered me a 360 block for a hundred and fifty bucks it became a no-brainer at that time to get the extra 20 cubic inches for basically less... "At the time".. I haven't done any research as of late on the subject though...
