350 conversion

[board350]

Does any one of ya'll have experiance with putting a 350 attached to a TH400 and NP205 in a Toyota truck? I wouldn't doubt there might even be a good thread on it already, I just haven't found it.

I am mainly concerned with what radiator might work well with this application. Would it even be saine to consider using the stock sized radiator? The thing is brand new and I am really short on cash and would like to avoid as many new items as possible.

That is actually why I am putting in the 350, it will end up cheaper the rebuilding the stock engine, or according to my calculations any way. For sure hp to dollar value anyway and an automatic tranny got real appealing the more times I was on the trail. Anyway, let me know what you think, and thanks.

Adam

[Greg@RME]

Originally posted by board350
I am mainly concerned with what radiator might work well with this application. Would it even be saine to consider using the stock sized radiator?

The V6 Radiator might be sufficent.... with the right Fan setup. I have a friend with a 302 in a 4Runner & he runs the V6 Rad. Seems to be good so far, but his ride hasn't hit the Trails yet, just been rolling around the driveway.

[YellowJacket]

Don't do it. Stay with Toyota.

[Kyron]

Originally posted by board350

That is actually why I am putting in the 350, it will end up cheaper the rebuilding the stock engine, or according to my calculations any way. what you think, and thanks.

Adam

It never works out to calculations........

You didnt forget about driveshafts, right?

What needs to be done to your 22R ?

[southern_yota]

i'm gonna have to agree with yellowjacket on this one, stick with toyota.

[board350]

Originally posted by YellowJacket
Don't do it. Stay with Toyota.

The 22R probably spun a bearing on the no. 3 connecting rod and the cylinder wall is questionable for boring over and cleaning up. What happened is that a piece of ring wedged itself between the piston and cylinder and well.... I have not had it professionally looked at but it does look iffy.

I am sure the crank and head are fine but by the time I rebuild the thing, even if I can use the block I have it would cost me as much as I found a RUNNING 350, TH400, and NP205 for. And last I checked Jegs and Summit had a lot more items for all those things than the toyota stuff. So sorry guys but I have to do what my billfold tells me. And beside I have to keep up with my buddys bronco (HP any way).

[southern_yota]

then get a 7mgte, it bolts right up to your tranny. i bet they'll have trouble keeping up with you after you do that, and i hear you can do the swap for about a grand.

[sublyme89]

7M swap would definatly be the best HP for the $$. Alot easier too. And with the 7M you can reuse your radiator, trans, transfer, driveshafts, and Axles.

That price of $1,000 is including a $600 motor. So it could change depending on how much you can pick up a motor for.

Besides would'nt you rather have fuel injection VS Carburation.

[350TOY]

Hey Board350 I think your on the right track but it also depends on what kind wheelin you do. I love my swap it was the best think I have ever done to my toy (350,TH350, and stock transfercase). I do alot of wheeling in the mud and snow where you need power to spin those big tires. My swap was a piece of cake but yours might be a little bit more difficult because you want to use a TH400. You see the TH400 is longer than the TH350 and that means you will have to move your crossmember back and because you are using a NP205 you will have to have new drive lines made. On my swap I got the adapter from Advanced Adapters that mated my toyota transfercase to the TH350 and that worked out slicker than $hit because the adapter is just the right thickness to whare I left my crossmember in the stock spot and did not have to change my drive lines at all.

As far as your radiator Qustion goes I bought the biggest 4 core aluminum one that I could fit and it works pretty good. The only time it really heats up is when Im on the gas hard for a long time.

Dodn't let these other guys scare you I think it is a very good swap and the perfect one for any toy needing more HP

[NotBaad]

Originally posted by YellowJacket
Don't do it. Stay with Toyota.

I agree. I wish my Toy had a 22r in it. Granted its a lot of fun to drive the v8 on the street/highway, but I get the feeling I'm going to like it a lot less once I get it on the trail a few times.

[CUSTOM_RUNNER]

Go 4.3 you have alot of room and if built right more than anuf poop to get you threw what ever , I used a 90 v6 rad bolted right in my 85 runner and I run duel electric fans to keep it cool just my 2 cents .

[Greg@RME]

Originally posted by YellowJacket
Don't do it. Stay with Toyota.

Yeah, stay Toyota!! Buy this! :D

More POWER!!! (http://www.wildyoats.com/vbulletin/showthread.php?s=&threadid=2918)

[board350]

[QUOTE]Originally posted by Greg@RME
[B]Yeah, stay Toyota!! Buy this! :D

here are the two problems with that.

1. You are in Utah, I am in Texas. That would cost me 150$ in Gas

2. I find it hard to believe you could rebuild that sucker for 400$ I am trying really hard to stay under 1K to get the truck moving again.

Honestly, I would prefer to stay with Toyota, but I really would like an automatic. And the money thing is keeping the chain short on possibilities.

[Greg@RME]

Originally posted by board350
here are the two problems with that.

1. You are in Utah, I am in Texas. That would cost me 150$ in Gas

2. I find it hard to believe you could rebuild that sucker for 400$ I am trying really hard to stay under 1K to get the truck moving again.

Honestly, I would prefer to stay with Toyota, but I really would like an automatic. And the money thing is keeping the chain short on possibilities.


Answer to your problems....

I shipped a complete TBI 350 to Huston for $60. (You just gotta know the right Freight Service.)

Rebuilding the Head.... $200. Buy a rebuild kit for the longblock, have the machine work done & assemble it yourself. The total would be over $400, but not too far over.

:D :p

Anyhow, it sounds like you really want to do the 350. Do what makes you happy, forget about everyone else.....

[350TOY]

Notbaad why do you think you will not like yours on the trail. I love mine I have got my carb diled in so it works great on the trail but like I said before I do 90% of my wheelin in the snow and mud so there is not alot of extreem anlges but even when there is it still runs fine.

[Camotoy]

Dude stay toyota.
You will have less breakage
The famous toyota reliability
Lightweight
Easy to work on
Gas Mileage
ROOM to work on it.
I could go on and on...

I'm telling you, you really should stick with toyota. You are building a crawler right? It's all about low-gearing. Run dual cases with reduced gears, and some 5.29's in both pumpkins and you're set. Save the big HP for a street car.

[NotBaad]

350Toy, most because of the weight in the front end and TOO much power. The stupid pedal can do a lot more damage to a Toy drivetrain when a V8 is supplying the power compared to a 22r.

Plus i've got a TH350 and 1st gear just isn't very low. Would much rather have a manual tranny

Had I done the swap myself perfect the first time I might feel different. But I bought someone elses project and am cleaning it up so I'm probably just griping because of that.

[board350]

how about this than

A real good friend of mine blew the head gasket out of a 22RE and is going to sell it to me for $150. He has been using it to pull around his motorcross bikes and this created a good excuse to put in the 7MG, the supra engine.

So, now, do any of you have any great wisdom on how the wiring harnesses work out between the two. Mine is an 84 and his an 85.

How about tranny, should bolt right up, right?

Now if I was to put a RV cam in the thing would I have to reset the computer for the fuel injection? I plan on rebuilding the thing to get rid of a knock it has had for 30K miles.

I am still bouncing between the two options, 350 or 22re. I am considering this cause i started recalculating the 350 and well.....

let me no what you think

[Camotoy]

Dude $150!!!!:eek: You shouldnt even have to think about that!!! Do it!!! It will bolt up to your tranny, and since the 85 and 84 are basically the same wiring will be a breeze. Even if the wring harness isn't the same it's still not too hard to wire it up. You pretty much will have 2 harness'. The EFI harness will be pretty much stand alone. I don't know about resetting the computer and I don't think you should have to but if you do that shouldn't be a big deal. If you do rebuild it, you can get some more power out of it while you are at it. That being, a fresh engine, EFI, and the cam, It will be great. A big improvement over the carbed 22r. Do it. You will save yourself from a lot of headache this way.

[hbar314]

sorry to get off topic


hey board350,
I just moved from wichita falls to arlington. Where do you wheel? Are you in Decatur 4x4 club? Been to forestburg?

[350TOY]

NotBaad I understand what your talking about but again it all depends on what king of wheelin you do. Far as the toy parts not holding up to V8 power I beg to differ. With the right set up everything works fine. I put a V6 rearend in mine and have not had one problem, the transfercase is bulletproof but we all know that and if something was going to break I would know I have put my toy to the test. I think that stuff could break if you had a 350 pumping out alot of horses but mine is just a stock crate 350 with an edalbrock intake and carb and I had it in there for about 3 years now and after I put the V6 rearend in I have not had one problem. Your right about the TH350 not having a very low first gear but I'm about ready to solve that problem by mating another transfercase I have to my stock one. Im not saying it is the right swap for everyone but I am very satified with mine and it works great for what I do. I was scared of breaking stuff to but I have been really suprised on how well the toy stuff holds up.

Also I get what you said about doing the swap yourself, I do not think I would buy one that was already done not knowing how it was done and if it was done right.

[board350]

Originally posted by hbar314
sorry to get off topic


hey board350,
I just moved from wichita falls to arlington. Where do you wheel? Are you in Decatur 4x4 club? Been to forestburg?

I have really just got into this. My Toy was my daily driver until the engine started acting up so I got a newer vehicle. This freed up the Toy for anything I could think of and afford (key word here).

Anyway, a cool place is called marshall creek off of 377 just north of Ft. Worth. It is kinda small but its close. I heard there is a awesome place in Nocona, but I have never been. The only other place I have been is the Slab down by Austin. It is real close to Lanno, it is quite a haul but oh man is it worth it. What sucks is that there going to close the place at the end of the year. I want to make a trip or to down there before then once the Toy is up and happnin again. I would like to get some folk from around here to come with. If you or anyone else would be interested let me know.

[board350]

Ya, I think I am pretty much sold on the 22RE. The bummer of the thing is that my buddy just left town for a week and God only knows how long it will take him to get the sucker out of there. It sounded hopeful that it would be sooner if I help.

I think for now I am going to just replace all the bearings and the head gasket and call it good. I am convinced my old engine has been running on less that 4 for some time. So anything running will make that truck seem like a powerhouse. Thanks for all the advise and happy wheelin. :D

[NotBaad]

350TOY, I'm sure you're right on the toy drivetrains strength for the most part. I'm running a 4cyl rear end at this point though (can't afford to change it out) so we'll see how well it holds up.

Don't get me wrong, I really enjoy driving the V8 Yota on the street. Its more fun than my Ram. It remains to be seen how I'll like it on the trail.

[Blade]

OK Guys, whats a 7mgte? I thinking about changing out my 22R and am looking for the best swap.:)

[board350]

Originally posted by Blade
OK Guys, whats a 7mgte? I thinking about changing out my 22R and am looking for the best swap.:)

This is a staight 6 engine out of a supra. The "t" stand for the turbo charged model. It is out of the MKIII model body style which was made during the 86 1/2 through 93 year models, or maybe just til 92. Either way they are nice engines, except for there tendancy to blow head gaskets, and bolt directly to stock tranny.