Hello. I currently own a 1966 Dodge D100. I have a 74' 360 motor with a 4-speed trans and a 78' 440 motor with automatic trans. What would I have to do to put the 440 motor on the 4-speed trans?

 

Assuming it is a A833. Pretty much a bolt in. but you would need a 440 flywheel to match your 440 as there are several varations. If you are building a high Hp motor it may not last long

 

And a bb bellhousing.

As above what sort of 4 speed are we "talking?" Passenger car? And what is it out of? A bodies used a short shaft 833, pickups, B, C, and E bodies used long shaft gearboxes

Or is it a "truck" gearbox?

The other "wrench" is that if it's an 833, is it a "straight through" that is conventional 4 speed or is it an overdriven gearbox? You can tell THAT because they are usually all aluminum, but one easy way is to put the gearbox into gear. Get the box into neutral, then rotate the front shift shaft CW. Now rotate the input shaft exactly one turn and watch the tail. If the tail turns LESS than one turn it's a conventional 4 speed. If it turns MORE than one turn it's an overdriven gearbox.

If its a truck 4 speed, that is NOT an 833, you'll need a bell that matches the 440 and the truck 4 speed. I don't know "but doubt" that a truck bell can easily be made to work with an 833, "depending" on the year of the bell.

Also, the flywheel size MUST match the bell