Kaydon

Well, as some of you may know a few months back I had to replace the head gasket on my '92, well about 2 months ago (I've been on hiatus here) on the way to work, it blew again. Cooked all my coolant, overheated and I pulled it. Water in the oil, probably rust in the crank case or on the crank. I had lifter tick before this too, so I could have a busted rocker or scalped valves.

It's been sitting in my yard since then, and I'm driving my other beater, the '89 Hardbody (so glad I didn't sell it now) and we're adding to my shop a room for the tool boxes, cabinets, etc so it's just open floor space to work.. So, as soon as that's done my dad and I are going to rip into the 'Yota once more..

I think the block is fubar, as we had the head machined.. Could be the head, but I personally think it's the block.. I won't know till we get down to it and have it checked, anyways..

How hard would it be to toss in a 3.4? Is basically what I'm getting at, and does anyone have an idea of what that would cost? I know the 22RE is a stout, but I want more power lol, and if I can get by without spending too much money I'll just do it... would I need a new trans, or do they make adapters?

ozziesironmanoffroad

put in a 22ret and put a racing cam in it.

n4ynu1010

4 to 6 cylinder I would say Motor/Trans change , maybe someone else will chime in , I guess it depends on what can of worms you want to open , I imagine a 3.4 would mean you would have to have the ECM and harness's as well , sounds like alot more work than a rebuild (especially the 4 cyl)

Kaydon

Probably will end up doing a rebuild, I'm just throwing ideas around in my head as far as the swap goes.

aviator

The swap would mean new wiring harness, new computer, different tranny...and on and on...
Unless you like work a rebuild is probably your best bet IMO... justinking?? is down your way why not pm him for ideas... he's done a couple of rebuilds now I think, he and his gf really seem to know their stuff too...

Elvota

I believe you'll need new engine mounts... as the 22RE is different than the 3.4 (or 3.0 for that matter).

You'd need a R150 tranny. May be able to find an adapter for what tranny you have now, but I think you'll want a R150 or R151 for strength behind the 3.4. This is assuming you currently have a 5spd truck.

You'll be looking for a 3.4 with all accessories, wiring harness and ECU. Price for that could run you anywhere from $600 to $1800 or more... depending on luck.

Make sure the ECU matches the 3.4 (auto or manual) and then that matches what you currently have in your truck. An auto will make the swap significantly harder. ORS has lot's of parts for the 3.0 to 3.4 swap... and can probably help you with what you will need although fewer people swap the 22RE for the 3.4.

This guy did one... or is doing one...
https://www.yotatech.com/forums/f116...z-swap-126413/

Some more info:
https://www.yotatech.com/forums/f116...estion-108132/

I am just starting my 3.4 swap in my 3.0 4Runner. So I have a few less steps.

Kaydon

Yikes. Out of my budget there, ha. Rebuild seems the way to go for now.

I do have a 5spd, I hate autos.. They put me to sleep, lol.

Justinking is up in Virginia, good 5-6 hours away.

What's the most common swap from a 22re? Hell, I may swap to a 22r, since I prefer carb over fuel injection, it's just easier to work with.. But I'll prolly just rebuild the RE. But, I want some more power.. so I reckon I'll have to dig around and pull out any trick I can to pull more power from 4 cyls, doubtful I spend the dough for a turbo.

BC_4runner

Just rebuild the 22re its probably the best 4cyl ever made

No offence to you in anyway but could you possibly of screwed up the orig HG job? a couple months for a HG is pitiful...

Also I highly doubt you the block as that is near impossible to do
(aluminum cracks wayyy before cast iron)

olharleyman

Do the 22 put a cam in it oversize the valves port / polish see if theres a crank upgrade header regear for tiresize. To do the 3.4 you will need new motor mounts , ecu , tranny , tranny mounts , drive lines to fit , wiring , harness , bigger rear end on and on

DeathCougar

iTrader: (23)

Try teh search feature. There are several threads regarding the 3.4L swap. As well as offroadsolutions.com, among others.

btw if you put a 22R in, you will need new motor mounts. You WONT need new mounts if you are putitng in a 3.4l

Kaydon

This is true, but the Z24 4 cyl in my Nissan has 502k miles and still runs, never been rebuilt.

It was about 4 months for the life span of that HG. Well, I don't think so. I bought the truck from a friend, and he blew the HG as well, it sat from Oct. to like, june? I dunno, and when my dad and I did it (he's a former mechanic so..) and there were 2 HGs stacked on one another when we took the head off, and I had the head machined and the water jackets welded up a lil bit..

Both the stacked HGs were copper.

I torqued everything to spec, got all new bolts, cleaned everything up, adjusted the valves, etc. etc. Everything was done by the book.

Yeah, I know.. whoever thought up aluminum heads was a goober.

n4ynu1010

[quote=Kaydon;50639169]This is true, but the Z24 4 cyl in my Nissan has 502k miles and still runs, never been rebuilt.
Isn't mentioning a Nissan on the YotaTech Forums a infraction HEHE

Elvota

Don't you have this backwards....?

BC_4runner

If ther was 2 gaskests stacked up it almost sounds like the guy was trying to increase the space between the head and block. Has the head been milled past spec?

Also, why were the water jackets welded??

n4ynu1010

Very good point , may have milled the crap outta block and or heads(prolly heads) , better make sure when you re-assemble that you check your valve/piston clearences .

DeathCougar

iTrader: (23)

It would only be backwards if he already has a 22RE, but I thought he had a V6?

22R to 5VZ requires mount change.
3VZ to 5VZ would not require a mount change.
3VZ to 22R requires a mount change.
22RE to 22RTEC will not require a mount change

*edit* So i should have read the post better, he does have a 22RE already. The above info is correct, but putting a 22RTEC in will not require a mount change. Putting a 5VZ in will.

ozziesironmanoffroad

how would that work with emmisions and smog? or do you not have to smog... a lot of people out here tell me to stay with my 22re and not to put a 22r in it, because it wouldnt pass smog due to the carburator engine being older, or something.

n4ynu1010

Well if your VIN indicates present emissions on that vehicle then yes that would be a issue and could be failed but most don't go that far ........Yet.

Kaydon

We don't have inspections in South Carolina, no such thing exists. We stopped having inspections a few years ago. It's a complete waste of time and resources.

Besides...

I love carburetors.

It's possible. The machine shop didn't say anything about it being milled past spec or anything, then again I took it to NAPA, could've been my first mistake.

They were worn away, too much. They weren't welded up much, just a tad around the edges then smoothed out.

n4ynu1010

I may move to SC one day , no inspections .......ahhhhhhhhhhh