I have a '97 f150 4.6 4x4 auto, just wondering if there is any way to determine which trans it might be? Might there be anything stamped on the housing?

 

check on the door jam there should be a trans code there on the drivers side

 

thanks

 

u=4R70W
E=4R100
I'm willing to bet you have the 4r70w

 

Yep, its a "U" code. I have the old 4.6 out of the truck and i'm installing a 2002 5.4 w/ lightning SC'er , so will the stock TQ converter i have work (withstand) with this motor or should I upgrade?

 

depends how much you juice up the "L" motor, see sig and gallery. I got an art carr converter $$ but it is holding up so far. I also upgraded the tranny, race build, artcarr clutch pack (extra clutches plates), hardened intermediate shaft and FTVB!

 

yeah, I was going to leave the motor pretty much in its stock trim. Do you know if the 5.4 and the 4.6 w/ the 4r70w use the same converter?

 

not 100% certain but if you go into the supercharger/turbo forum find "iron horse" he is doing the swap also from a 4.6 and has been doing some converter research. he will be glad to help you and probably has the answer you are looking for. at the minimum i'd put a FTVB then run the tranny till it blows then get a race build and upgrade the above.

 

sounds good, thanks for your help