So I did some research and compared the 3.4L to the 1UZFE swap. I have found a company that makes adapter kits to mount this motor to an R150. I currently have the 3.0 v6 and starting to hit higher mileage. Oil leaks, unwanted noises and just overall trouble. I figured in the next 30k miles it will need a rebuild. So what better excuse for a motor swap. Yes the 3.4 is a direct swap. But with a little cutting and small wiring differences I could have a Toyota v8 pickup truck. Already ordered a couple other things which should be coming in for suspension so the build itself is underway soon. Just in time for holiday vacation!

Here is my question tho. I was told the stock radiator will work fitment wise but is there a direct swap radiator that is more efficient? I hear it has overheating issues if I am not careful with the stock radiator. Also, Will I need to move the transmission back? Not looking to beat the hell out of the drivetrain until I have it running smoothly and either an 8" or 8.8" back there to handle the extra power. Any idea if the stock r150 can handle the power this v8 puts out?

 

i bet you can find this answer here:
https://www.yotatech.com/forums/f160/

and maybe check this one on V8's
https://www.yotatech.com/forums/f161/

 

Didn't even dawn on me to check those. Wow.. thank you lol. Any idea though on if I will have to move the transmission back? Trying to keep from cutting and moving to much crap. Read a couple people did. Some did not.