318 to 383 BB conversion for 71 dart

If you are going to go with the conversion mounts get a spool type K-member. the biscuit style K after you are done hacking it leaves a lot to be desired. I've done 2 of them. I wish I would listen to my own advice!

Headers, if you are running a 383 run the tri Y headers. You can install them in about 30 minutes with the engine bolted in place.

Driveshaft length will vary. I'd recommend moving your leafs 1.5" back before doing your measurement. Your going to want the option of running a taller tire.

Torsion bars are up to you. I ran /6 bars in one and .870 bars in the 2nd.