iam gonna need to rebuild my 3.0 some time in the near future and considering doing the 3.4 swap into my 89 first gen. 4runner but was wondering if i will be having any issues getting it smoged in the state of california if i put this motor into my runner? i would also like to add the supercharger to it , anybody know how much horsepower the two combined will make with headers ,intake , and exuhust ? and final question is does anybody know anyone in southern california that could do this swap for me ? thanks.

 

Please do some more research. All of these questions are answered in this section.

:wabbit2:

 

Call and talk to a SMOG ref now before you start buying parts, they'll tell you exactly what you're getting into. 1-800-622-7733, talk to a receptionist, then 2-3 days later an actual ref, possibly the same guy that will do you're inspection, will call you back.

Yes, a 3.4 swap (or any "engine change," as it's called in legal jargon) is legal in CA but you have to do it correctly. For example if your donor (whatever ECU you're using) is from a '99 4WD M/T ext cab Tacoma, you have to turn your 89 4Runner into a '99 4WD M/T ext cab Tacoma in terms of all the emissions equipment and tail pipe readings.

There's a lot of specific details about the whole thing that I don't want to get into, but do some more reading around here and call the ref, it can't hurt to ask. Do your homework up front and save yourself a bunch of hassles and $$ in the long run.

 

x2 3.4 swaps are legal in ca just need to keep all smog equipment on it

 

Are you planning on using an auto or manual?

it will make a huge difference as to the ability to smog it cheaply............or cheaper I guess. Neither is cheap. the easiet way would to be a 340F tranny from a donor that you buy the 3.4 from. Then you do not have the clutch slave in the way of the exhaust. If you are going to try to go manual, it gets hard and expensive unless you are lucky to have a ref in your area that will not care that you swap the downpipe to the passenger side.

Definitively swap it over rebuilding the 3.0 IMO

Here is my swap saga. Take a look if you would like and then post some specific questions, and there are always people to give a hand.
https://www.yotatech.com/forums/f160...ex-cab-196823/

 

Thanks for the info guys , I will be doing alot of research ,one thing i'm concerned about is the milage on a used 3.4 and if it will need rebuilding etc....

 

I have a manuel.

 

depending on what the 4runner or tacoma looks like, id say anything over 200,000 might as well rebuild the top end while its out. also 95-97 are more susceptible to the headgasket issue

here's a list that everyone posts on when there 3.4s head gaskets failed
https://www.yotatech.com/forums/f2/5...t-poll-200982/