Over on another board (c-body) there has been a lot of discussion about overdrive transmissions and the common feeling is that there really isn't much out there to bolt up behind a 440 or 383 (at least cleanly). But I posted some questions about a diesel conversion, or doing something to improve the eficency of the 273. I just thought what about an overdrive? Or even a five speed? Anybody know of anything that could bolt up to a slant six??

There are numerous ways to install a 5-speed or a 4-speed overdrive transmission behind a slant-6. This has been discussed many times in the past. Please spend some time using the board's search function to read up on the old threads.

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The 'quick and dirty' way to an OD manual tranny is the Mopar A-833OD box... for the 273 getting a bellhousing from a 1975+ 318 vehicle would be the best shoe-in for making the tranny work... for the slant, they were fairly common in A/F bodies after 1975, and for the longer version check on 1975+ D-100 trucks (that tranny works for B/E bodies and trucks...)

Automatic overdrives become a different story....

-D.Idiot