700r4 swap question

[oneofthefewbmx]

hey guys...i have a real quick question about swapping the 700r4/205 from a 1991 blazer into my 1986 pickup that had a th400/208. i know im goin to have to do somthing w/ my driveshaft lengths, that is no problem...my question was is there any computer or electronic wiring stuff that im goin to have to mess with becuase the blazer is a 1991? any help would be appreciated. thanks alot guys. -mikkie

 

[ryan22re]

ummm blazers had a 205 behind a 700 r4 in 91?

should be 241.

but at anyrate, you will have to hook up the throttle valve cable from the 700 to the carby, and buy a converter lockup switch from a tranny company (pretty sure b&m, tci, transgo make a kit).

 

[oneofthefewbmx]

what is a converter lock up swithch? also, the guy im getting this from swapped the 205 in, he may have swapped the 700r4 in also, im not sure....thanks for your help

 

[ryan22re]

normally the torque converter lock up is computer controlled.

with no puter to control it, you need to install a switch to control lockup.

 

[Leper]

91 is an electric speedo also.

 

[oneofthefewbmx]

hmmmm....electric speedo...that might be a problem...thanks alot for the help guys