The Dodge Challenger Message Board

My bro-inlaw has a 68 dart that a newly rebuilt 440 with a A 833 4spd will mate up with. problem is that the 440 crank is a automatic. no provision for the pilot bushing. we need to know the depth that the crank needs to be drilled and diameter. please help us thx.

The crank may not be drilled for a pilot bushing but there is usually an un-machined cast hole where it would go. You don't have to drill this. There is a special pilot bushing designed to fit right in the automatic crank. I think you need to shorten the trans input shaft a little though. I think MP do the busing and instructions?

I might have more information on it somewhere.

whats MP? if you do have more info please let me know.

The middle section of the first scan (See: http://challenger.mpoli.fi/forum/viewto ... 3122#13122 ) will give some information about this.

fordguy wrote:whats MP? if you do have more info please let me know.

MP = Mopar Performance. Sorry. You have to learn to speak mopar.

I looked but cannot find the information I thought I had. It must still be in one of the magazines I have stashed away someplace.

My question is what will now support the input shaft of the transmission.
Think about this.
With nothing in the crank, the input shaft is now supported by only the input bearing, not the best idea in the world.
Take the crank to a GOOD engine rebuilder and have a bushing made to to fit the crank and the transmission input shaft, or get the proper crank to do the job.
Do it RIGHT ONCE, or do it WRONG MANY TIMES.
transman

We are not saying don't use a bushing! We are saying there is a bushing made just for this conversion that needs no machining of the crank. I think you just gring a small amount off the end of the input shaft because the bearing does not go as far in.