Rarity (and desirability) of a slant six/ factory 4 speed?

Even if there were a rod hanging out, there's replacement Slants.

I daily drive a slant six with an OD833 and I'm building a slant with a B&T 833.
Slants are not powerful and not fast but they are very fun and reliable. Maybe the day will come when everyone puts away their fast and furious DVDs and realize they don't need 500 horsepower for a commute.

That's very true. And I've said it several times already.......this 400 swap in my car might not be permanent. I have a soft spot for slants. I am still also actively building my long rod 225 as well. Who says I caint swap engines around? lol