Topic: 3.4v6?

[bigarms23]

i was wondering why i don't see a 79-83 toyota truck owners swapping in a 3.4v6 does it not fit

[85_4RNR]

Its a heavy engine compared to a 22r or 22re.

[COToy91]

i was wondering why i don't see a 79-83 toyota truck owners swapping in a 3.4v6 does it not fit

Seen quite a few do it, someone on yotatech's 3.4 forum just started another. I think it is more an issue of carb vs fuel injection tanks and various other wiring issues. It is much harder to finnd wiring diagrams for anything pre 1989 because they are not online. You also have to deal with a new trans, R150f, motor mounts and all the various emissions equipment.

But it has been done.

Look around on here www.yotatech.com/f160

[mrdoug]

I'm currently doing a 3.4 into an 85 (originally 22R then hacked 350sbc). The wiring is a pretty big challenge, much more so than swapping one into something that had the 3.0. It almost deterred me, I'm sure it's a deciding factor for many.

[tom w.]

the worst part is adapting your transfercase to your front axle. if you can find a 3rz and the manual bellhousing to go with it could save you $500. that's the trouble i'm having swapping a toyota front axle under my v6 tacoma. it's gonna cost me $510 just to run a bone stock gear drive transfercase. if i want any gear reduction it's either $450 for 4.7's, or $510 for dual 2.28 cases.

[COToy91]

the worst part is adapting your transfercase to your front axle. if you can find a 3rz and the manual bellhousing to go with it could save you $500. that's the trouble i'm having swapping a toyota front axle under my v6 tacoma. it's gonna cost me $510 just to run a bone stock gear drive transfercase. if i want any gear reduction it's either $450 for 4.7's, or $510 for dual 2.28 cases.

it would cost less to just swap a R150f in and adapt that to a geardriven tcase

[yotaneck13]

3.4 swaps are ba wiring is a breeze but then again thats what i do best

[flyinsquirel]

I have a 3.4 in my 84 and it's pretty tight front to back, my fan is about an inch off the radiator.  I think the first gens are a couple inches shorter in that direction, you may have to run an electric fan.  For mounts I used the stock tacoma frame mounts and choped about 1" off each one then just welded them to my frame.  I don't know what you would do for a tank & keep it smog legal here in CA.  I'm using a second gen FI tank with the V6 pump. 

Allot of people say the power gains over the 3rz aren't worth the extra weight, that may be, but it sure does run   

[dk98]

to keep the tank legal either swap the tank or switch out the fuel sending units

[tom w.]

it would cost less to just swap a R150f in and adapt that to a geardriven tcase

?

an R150f is stock behind the 3.4l 5vz-fe. you still have to buy a $350 adapter from the transmission (R150f) to a passenger drop case (R1A gear drive case), and a $159 23 spline input gear for said case (because the transmission output is 23 spline.

[yotaneck13]

?
an R150f is stock behind the 3.4l 5vz-fe. you still have to buy a $350 adapter from the transmission (R150f) to a passenger drop case (R1A gear drive case), and a $159 23 spline input gear for said case (because the transmission output is 23 spline.

so what tranny an tcase are in my t100 i was under the impression r150f pass tcase  stock out of an 88 runner 3slow im guessing and its 23sline with the 7inch imput shaft?

[tom w.]

so what tranny an tcase are in my t100 i was under the impression r150f pass tcase  stock out of an 88 runner 3slow im guessing and its 23sline with the 7inch imput shaft?

well the r150f's that came behind the 3.0l had a passenger drop chain drive transfercase. which i actually have a line on one and i plan to run it until i can afford duals or a 4.7 gear drive case.

it's cheaper yes, but you can't get any gear reduction for that unless you buy a $350 adapter to a gear drive case.

[yotaneck13]

so mine is chain driven then? wow i didnt know that all i knew was it was r150f top shift and it bolted to my t100 it might have been out of a t100 there was 2 there i forget which one i got tho what were the 100's chain or grear?...cuz they would be pass drop as well...funny story actually they tried to give me a w52 told me it would bolt up i was like no it wont so he got a paper out wrote things down it said that if this tranny wont bolt to your motor ill give u 200 off the price for making the mistake we both signed it and he gave it to me...i walked out to the truck got my bell housing from my auto held it up to the tranny he handed me 200 cash back right there lol stupid ppl