225 /6 and trans value?

all depends on where you are. most people wind up giving them away just to get them out of their garage!! . a GOOD one around here, $150 tops. someone someplace else, maybe they can get $3-500, that price will buy you a comparable condition B or L A engine here. or even a cast crank 440, maybe a steel one even.

I would just keep it if me. when you need one, everyone that has one for sale thinks "WOW! I own one, rare !!!!!,,,, its gotta be worth a pile!" LOL