3.4 Swaps The 3.4 V6 Toyota engine

94 4runner 3.4 swap questions

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Old 01-09-2017, 01:25 PM
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94 4runner 3.4 swap questions

bought a 94 3.0 2wd auto 4runner back in July ran it a couple months then blew up the motor. When I pulled the motor I decided to make it a 4wd 5 speed using my old 93 pickup for parts along with the 3.0 in the truck . I welded in the 4wd drive mounts put the motor and tranny in then I stopped working on it. I bought 2 98 4runner's and used some body parts off one to fix the other. I still have the complete motor and wiring harness and was thinking about pulling the 3.0 out of my 94 and dropping the 3.4 in. I want to do all the wiring myself and can't find diagrams could someone help me with wiring? Also have a stupid question about the exhaust. Could I use the driver side manifold off the 3.0 on the 3.4 and eliminate the crossover and run the headers down to a y pipe. Any help on this swap would be appreciated. Could use all the help I can get.




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Old 01-16-2017, 10:04 AM
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Read the stickies before you go any further and no you can't use 3.0 manifold on 3.4 they are different heads.
Old 01-16-2017, 10:54 AM
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Originally Posted by JG22R
... I want to do all the wiring myself and can't find diagrams ...
EWDs can be found here (pay the $15 for 48 hour access, pricing could have changed in the last few years):
https://techinfo.toyota.com/

Originally Posted by JG22R
...could someone help me with wiring? ...
If you're not going to spend the time reading through other swaps and the dozens of threads dealing with the wiring, just go buy a harness
http://www.offroadsolutions.com/prod...2r-e-vehicles/
http://www.toyonlyswaps.com/conversion-wiring-.html

Originally Posted by JG22R
... Also have a stupid question about the exhaust. Could I use the driver side manifold off the 3.0 on the 3.4 and eliminate the crossover and run the headers down to a y pipe. ...
No.

Originally Posted by JG22R
...Any help on this swap would be appreciated. Could use all the help I can get.
Read the stickies (the threads "stuck" at the top of this section https://www.yotatech.com/f160 ), read through various other, older swap threads, unfortunately a lot of the really good ones have lost their pictures but the text information is still there. Of particular note, read Elvota's swap thread (it's a sticky).



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