what motor is the 450?

 

the E won't be a 4x4
and IIRC you need a non W torque converter or the whole flex plate if u use the torque converter from a W

 

The guy that has the transmission says the 450 was a 6.0 and also stated it was the 4x4 trans.

 

If the van was a 6.0 you won't have to do anything but swap it....even if it was 2wd your transfer case would bolt right on it.
I know for fact a 5r110w out of a truck will work in place of a 5r110 (if you swap to a 6.4 flex plate or use a 6.0 converter), assuming there isn't something van specific.
I've done this swap in my truck (truck to truck)
If you have a specific question I didn't cover just ask.

 

Ok great. So basically ur saying I just need to switch my flex plate to a 6.4 and bolt up the trans? Thanks for the help

 

that's not what he's saying

a transmission out of a 6.4 you either need a 6.4 flex plate or just put a 6.0 converter in

but if it's a E-series 6.0 there shouldn't be anything you need to switch, should swap over just like a truck trans

 

Yep, what they said....6.0 to 6.0 should be a direct swap. ..again I'm no van expert, there may be some weird van specific thing I don't know about though.

 

I wonder if it would be a "W" transmission though

 

No idea....if the 6.0 carried over a few years it would make sense the 5r110 did too.

 

Ok thanks for everyone's input

 

i have a 2005 6.0 with a 5R110 that is busted. I want to replace it with a 5R110W from a 2009 6.4.

What torque converter and what Flex plate do I use? 6.0 or 6.4? Please dont guess or speculate I need to hear from someone that knows.

 

You can use both the 6.0 flex plate and converter with the 6.4 trans

 

Agreed the torque converter to flywheel bolt pattern is 6 bolts for the 6.0 and 8 for the 6.4

so you need to match the bolts but either setup will fit either motor

but the stall on the 6.0 converter is what you really want

and make sure you leave the remote filter in place or eliminate the whole filter manifold