What Motor To Replace 3L ?

[Snowy_07]

Hey guys.

I'm really just thinking out aloud here. I'm having afew issues with my 3L which is unfortunately pointing toward a cracked head :cry: Anyway I doubt I'll have the funds for an engine swap, but was just thinking that if I did, what would it be ?

Truthfully I have no problems with my 3L with Turbo and Intercooler. Did 4000km's to the Territory and back with no probs afew months ago. it's great on fuel around 11.8L/100km mark and does everything I need it to. But in saying that if an opportunity to gain some more power, I wouldn't turn it down. The Lexus V8 is really tempting, I think the 'Fun' factor of these motors would be amazing, however reliability and being used as a daily driver to me is still in question (anyone feel free to correct me, I'm actually hoping someone will :D ) I'd prefer to keep it all Toyota, but I'm not against other brands either. A diesel is also on top of my list due to reliability, however wouldn't say no to a petrol.

So what does everyone think ?

5L - Similar to my current Setup with alittle more power
1HZ - This to me is the logical choice, but would it fit in a Hilux ? anyone done one ?
1UZ - Cheap as far as transplants go. Lots more power. How Many km's do these motor usually achieve before major work is needed ?

So what does everyone think, what would you pick ?

cheers
James.

[v6hilux]

Fix the problem that caused you cracked head first, then replace the head.

[cac]

have no idea on the 1HZ...but i have seen hiluxes with 2JZs fitted...so getting a straight six into a hilux is not impossible (on a side note i've seen a late 70's corolla fitted with a holden six)

the 1UZ is a very well engineered motor....i can't see major work being needed this side of half a million kays if its looked after properly....i reckon your two biggest issues would be fuel consumption (because with all that power you would want to use it :)) and whether the rest of the hilux drivetrain can handle the power...driving it gently will help keep the fuel bill reasonable and the drivetrain intact though...

if the head is cracked....get some quotes on getting it and whatever cracked it fixed first, and then see which is going to be the more cost effective option to getting the vehicle back on the road

the 1KZ out of the newer hiluxes might also be worth considering if you come across one at a reasonable price....

[mic89hilux]

i owuld be going the 1kz motor as not to much work to but in as only bell housing to changed and i think same enigne mounts if u get a half cut wreaked ute would be the go

[Punk_Cruiser]

1hz route may not be worth it. I reckon it would be a good swap but for the amount of money sourcing one and mucking around getting stuff made up it would probly cost a heap. The money spent on the conversion could be spent on rebuilding your current motor with more attention on getting the most out of it turbocharged.

Just in case your'e real keen on the 1hz, heres some handy info the 79 (not 75) series powered by 1hzs ran the R151 gearbox which I believe is the same/similar to what tyou already have in your lux. So you could nick the bellhousing/gearbox out of a 79. The only prob I can see is, if you take the gearbox as well as the bellhousing is that the shaft between the gearbox and transfer may be different to the one one in your lux. But if they are the same box I suppose you swap the shafts about to make it all fit. Oh and make sure you put a free flowing exhaust on it. You would not believe the difference, It almost has petrol acceleration (to me anyway;) ).

I hope I made some sense here somewhere

cheers

[Snowy_07]

Hey thanks alot guys, definately given me alot to think about.

Punk Cruiser- thats some awesome info, thanks alot. My first choice would definately be the 1HZ, but as you mentioned the cost along with physically fitting the donk would probably be the biggest factors. Although I know if I shell out the extra now it'll be worth it in the long run.

The little voice in the back of my head is still whispering 1UZ 1UZ 1UZ :D

Really keen to hear from/if anyone has done the 1HZ into a lux.

cheers
James.

[Punk_Cruiser]

I was crusing around the iH8MUD forum one day and I think there was someone in the states who was going to do a 1HZ conversion into a tacoma/Hilux or a 60. might be worth checking out.

Also depending on where you live, check out auctions for ex-mine troopys and utes. They usually go pretty cheaply because the bodies are shagged. You might be lucky and find one with a decent engine in it. I don't know him personally but PM Zoltan, as he is building a comp 75 series ute (he has a thread on it in the buildup section). He got it and another one from a mine for $3000 (through his dad I think). He even managed to get one registered - that one wasn't too bad. The other one (his comp truck) was almost complete minus the head off thge engine and whole lot of surface rust. HDJ105 (spelling?) is also extremely knowledgable about anything to do with landcruisers. So he might be able to answer a few questions for you.

Although I said the 1HZ conversion would be alot of mucking about, I still reckon it would be pretty cool, not to mention the potential with a decent turbo setup and LPG injection.

cheers

[Offroad Gear]

Mate the KZ motor is a lot of stuffing around engine mounts need moving and computer etc,
Go for a decent 5L everything will swap over including turbo etc and it mounts up better it s also pretty gutsy compared to the 3L esp with your turbo. Just my opinion tho.

Dave

[Snowy_07]

Thanks guys :thumb:

Punk Cruiser - I had a read of Zoltan's build up thread, thats bloody awesome. I know if I had the money, a 1HZ with a Denco kit, Water/Air intercooler and maybe a D-Gas injection later on down the track would definately be the go.

Offroad - The 5L is probably the most sensible choice. How much do they usually go for ? can anyone point me in the direction of someone in the SE QLD area that deals them ?

thanks again guys, definately got alot of reasearch to do.

cheers
James.

[A1 Mech]

u wud be hard pressed to fit the 1HZ, maybe if u mounted ur radiator in the tray. It is longer then the 2J's and they r tight, plus it is shites load heavier then the 3L so will sag any sort of suspension u throw under it.

If ur keen for a V8 then the 1UZ wud be the go defently, I hav drivin in a few 4bys powered by them and they r impressive. They r reliable and parts/motors r relatively cheap.

The 1KZ is at least 5k to buy as a crate motor and is multipoint EFI so wud be painful to wire but not impossible. It wud be well suited to the engine bay and vehicle as it was released in that body in the surfs/lux's, price is only thing.

U cud go for a 5LE which is a fuel injected version of the 5L, Only problem is no one I hav found it to sure how to wire them so that wud be sum dollars also.

If I were u and this is wat I plan on doing, I wud find a decent priced 5L, fully rebuild it with forged internals/worked cam and bored out to suit largest over sized pistons, Add a bigger WAIC'd turbo setup with sum decent boost, diesel gas system added, boost compensator on injection pump and hav the whole lot dyno tuned. With the combined cooling of the water/air intercooler and gas injection u wud probably be able to run a reliable boost of around 14-15psi which wud c the 5L get up and boogy well and truely. Cheers

[Turbotojo]

I'm with A1. a 1HZ and the smaller 1PZ would never fit in a Hilux. You're stuck with 4 pots or maybe a V6. The 5L route is the best to take although forged pistons wouldn't be needed. I'd also keep the boost low at a max of about 10-11psi as Diesels work on high torque output for which you only need low boost.

[Snowy_07]

I was hoping you'd reply A1Mech. I knew you were in a similar frame of mind with yours and was interested in hearing you opinion.

The 5L looks like it'll be the go. Without the forged internals and oversized pistons, would it cope with 8 - 10 psi and still have a respectable lifespan ?? Providing the Water/Air IC is fitted and the EGT is kept as a resonable level ?? Also whats the going rate for a 5L, i've had a quick look around but couldn't find much.

it's very much appriciated guys :thumb:

cheers
James.

[Turbotojo]

The 5L is basically the same as a 3L with a bigger bore. There is not much difference between the turbo and non turbo pistons for such as the 2LII-T 0r the older 2L-T, just the rings are different but not in all.

[A1 Mech]

Yer forged pistons probably arent essencial as long as u keep the EGT moderate, 8-10 is pretty reliable on a stock 3L so with an intercooler added it wud only help more. I've found 5L's for $3500 (trade ur old motor) on ebay but I rekon from an importer u cud get one cheaper. If u do find anything through up the details. Cheers

[tony-paul]

Amc Spain make a bare head for the 3L thats sells for around $450 on ebay if you short on funds and a set of good extractors are a must so head ,gasket set,cam bearings, extractors $1200