4BT to A518/618

[Slaughter]

Folks, I have been trying to figure out if I can make an auto trany from a 6BT Dodge, works as well behind a 4BT. I have a couple great engine candidates for my Scout II conversion and really prefer the auto. The biggest problem seems to be how to run the transmission. The 4BT obviously doesn't have a TPS and Ibelive the 618 has the speed sensor in the tailshaft. Can one from a 6BT work? A stand alone controller might be the answer, but I am looking to keep costs below the 1 Million dollar range! A lock up converter would be nice, any thoughts on how the torque curves vary between the First Gens and a bombed 4BT might compare? Anyone nutty enought to have explored this type of conversion, or just some one who know mucho about the stuff, please chime in! I think it would make a slick rig! Scott PS I would consider any type of auto out there, legnth is a consideration and an OD is a must! I plan on bobming the 4BT to what Lou Chiu has in his p7100 rig, about 165HP and 475ft lbs torque

 

[HoleshotHolset]

I'd like to see a 4BT with a P-pump... . I have yet to even see one.



As for the bellhousing... the 4BT and 6BT use the same one... . so go to a transmission guy that does 47RH/47RE's behind the 6BT... and he may even have the SAE bellhousing adapter. I've seen them hanging around at some transmission shops.....



If your 4BT has a P-pump... then you could probably use the 47RH ECM and TPS making it a bolt-on affair.



Matt