Wooo Hooo BB heaven check this out from [PACT]... life is good.

#56XXX. Chrysler Big Block (361, 383, 400, 413, 426, 440) to Dodge Small Block 518 transmission. This is the adapter everybody is looking for. 6 bolt crank Cost $689.00, 8 bolt crank Cost $730.00\
what a price i paid that for my trany years ago

 

http://www.transmissioncenter.net/dodge.htm
here is the link

you have to scroll down to the near bottom of the page but its there you will get distracted on your way down with all the cool parts but you will find it

we did a calculation with my 3.90 gear and the .69 od of the the 518 gives a top speed around 185... so imagine a bb with a 3.55 or a 3.23 a top speed around 200 mph and with a 2.72 wow i would really love to live in Montana with top speeds like this .

 

Interesting.

 

yes very.