Yes, it's useable - it's the same engine family. You will have a problem with a '54 239/255 'Y' Block as they are orphans tho.BobWishart said:Can I use a 292 distribtor in a 312? One Y-Block guy says "No" and another says "No problem". Who's right and why? I'm putting a 312 into my 1955 Mercury where a 292 used to live. Thanks for any help!