HZJ77 vs KZJ78. What are your opinions?

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do a search on the 70 forum and diesel forum.
i have installed the PZ into a 78 and (i think) a guy in BC installed a 1HZ into a 78. both need the HD front clip. the PZ will use the R series tranny, the HZ can use the R sereis or H series trannies.

why not shop direct in Japan? I can recommend a guy to use that is trustworthy.[/QUOTE

How did the suspension turn out?
 
why not shop direct in Japan? I can recommend a guy to use that is trustworthy.

can u recommend him to me? i want to shop for 79 rims and ship it to malaysia
 
no issues at all with the additional weight but i did run a dobinson lift kit by choice, not by necessity.
How did the suspension turn out?
 
As for turbo-ing the HZ, I've seen some forum posts over the internet about head issues once you start putting a turbo on it. Is it true though?

Has anyone done a 1HZ into a KZJ78 body before? Would it fit though since one is 4 cylinder and the other is 6?

I'm not sure how a 6 would fit into a Prado engine bay.

It would it be a costly adventure if you couldn't do it yourself. Time you take into account the cost of finding a 1HZ/1HDT to swap in , you'd be looking at 5K for a HZ in reasonable condition and then proberly near enough that again to get someone to swap it all in. I imagine the radiator ( transcooler if auto) would have to be modified , engine mounts , power steer set up , heater hoses etc etc. It may not seem like alot but having worked in a 4X4 shop for the past 6 months and swapping in a 6 clyinder to my own 70 its amazing how the time adds up

In saying all that. Your old 1KZ could be sold for what 2-3K?

However, recently I saw a few HZJ7- popping up on New Zealand's "eBay" aka TradeMe. I quite liked the look of it and I heard 1hz is the ultimate bulletproof engine. But apparently it's very underpowered and turbo-ing it costs a fortune and decreases the reliability.

What are your thoughts about it? original 1HZ vs original 1KZ.

Also turbo-ed 1HZ vs original 1KZ.

Which one would win in terms of reliability and power?

I've been through this same throught process myself for the past year or so. I had a HZJ70 ( SWB) and like you was on a budget

I wanted it to be turbo'd but after reading a few too many reports about heads cracking that put me off. That & the cost since I couldn't do it myself and would therefore have to pay someone to do it . It wasn't going to be cheap

My next thought was swapping in a 1HD-T from an 80 series.
It was the cheaper alternative than turbo'ing the 1HZ & without the realiability issues but try finding a HD-T in NZ for under 5K ( price I paid for the Cruiser originally)

This all seemed like alot of money just for that added bit of power ( & sound!) I almost ran into what I did by mistake. While browsing trademe one night I came across a old rusty 60 series. 12HT , manual , diff locks front & rear + PTO winch. Okay the engine mounts need to be modified but the gearbox bolts in so your halfway there! I wanted diff locks too so that was that sussed. The PTO winch was just a mega bonus

Now I'm running 12HT with proven realiability , Awesome power & sound . 60 Series diff locking axles which are wider than 70 series ( more stable) and a PTO winch to boot

I'm so wrapped with the set up I'm doing it all again to my other 70

Ultimately what you do depends on your wallet (or) how badly you want your desired Cruiser. Ultimately I think KZ or HZ with HD-T or 12HT swapped in would be a sweet set up. The 12HT's are rare though , that's one thing the HD-T's have over em. Parts etc are easier to find

Ok, any change from what Toyota spent millions of dollars engineering will have an effect. So yes, there will be a decrease in reliability, though negligible.

Unless you're running massive boost on an old dog of a HZ everything should be fine.

Until recently, Toyota has had a habit of over-engineering nearly everything, that's why you see 2H's that go for literally a million klicks on oil + filter changes only. So turboing a healthy 1HZ with a sensible amount of boost would add an almost unmeasurable amount of stress - to the point of saying that it wouldn't decrease reliability.

:grinpimp:

I agree with what you've said however there appears to be a definate link between people turbo'ing 1HZ's and 'Cracked heads'

Either theres a large number of people out there who've done a bad turbo'ing job or they're just not meant to be turbo'ed. I think I lend towards the latter
 
links to these blown heads and what boost and fuel settings they were running?

there are a lot of idiots that turbo engines and run extreme boost and fuel without the proper gauges to read what is happening inside the engine ... and even if they have the proper gauges they decide to ignore and when the engine dies they blame the engine and not the right foot attached to a empty cranium.

if you turbo properly, if you run the EGT and boost and water temp and drive according to the readings then you WILL NOT have any issues. if you turbo and drive it like you stole it then you might end up with issues.

common sense goes a long way to engine longevity. want to have fun? run a pyro on a NA diesel engine and check out the EGTs you are running. a bit of an eye opener.

making recommendations based on a lack of experience, poor examples off the net is a poor choice of reference material.

once again there is a couple detailed threads on the HZ/PZ swap into a 78, don't make assumptions as to what might or might not be needed when the facts are here to read.
 
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http://www.youtube.com/watch?v=Ef3cLRw0A5U

This guy had been running this turbo for almost 3 years+ and I don't think he has came across any problems yet. Sounds bloody amazing though with his setup. Gotta love that turbo whistle.

It does sounds like even after turbo-ing it the 1HZ is still more reliable than the 1KZ. I've never had a heavy right foot as I'm always paranoid of doing damage to the engine. I guess it's just unfortunate for me that my 1KZ decided to konk out randomly like the others. I've never overheated t before but one day it just decided to start cracking it's head.

Right now I'm trying to learn more about engines while saving up for that one rare HZJ77 that might pop up one day. So please pardon me if I'm asking really newbie questions as I'm still trying to understand how an engine work.

Crushers, are the 70 series very rare in Canada as well? What about the 90 and 120 series?

NZCruisers, I sold my KZJ78 for $3400 as the interiors are really well maintained. I didn't expect much though as it's so expensive to repair the head. Everyone was offering me $3k and after 3 weeks when one guy offered me $3400 I just had to say yes.
 
What's the difference between a HZJ76 and HZJ77? Is the HZJ76 only newer with different dash?
 
What's the difference between a HZJ76 and HZJ77? Is the HZJ76 only newer with different dash?

5 stud rims,coil front suspension,different gearbox
 
What's the difference between a HZJ76 and HZJ77? Is the HZJ76 only newer with different dash?

I would hazard a guess and say the 77 was prior to the 1999 changes and the 76 came after, a lot after. But it's a good way to distinguish between the two.

Pre-99 7x trucks: leaves all round, 6-stud, HZ-motors..
Post-99 7x trucks: coil front, 5-stud, 1VD motors..

There will be many more differences that others will add.
 
yes longer than the 79s.
76 and 77s have the longest leafs in the 70 series. They share the same eye to eye length.
 
More to come.
Bigger rotor and caliper, bigger stub on hub, EGR on 1HZ, grille, longer rear spring, digital cluster......

Newer styled horn button since 99 ;D
 
yes longer than the 79s.
76 and 77s have the longest leafs in the 70 series. They share the same eye to eye length.

i always thought the 79 rear leafs were the longest:confused::hhmm:
 
I fell in love with the 70 series since I was 10 years old when my dad first got an LJ78 in Malaysia. Now we all moved to the NZ and he bought a KZJ78 for work. I too got a KZJ78 but due to the head cracking and other little minor stuff that will cost me a fortune to fix, I sold it cheap and got a Nissan Maxima with the VQ30DE engine. Right now I can't do much since I'm still a student. But in the future I definitely want to buy another KZJ78.

However, recently I saw a few HZJ7- popping up on New Zealand's "eBay" aka TradeMe. I quite liked the look of it and I heard 1hz is the ultimate bulletproof engine. But apparently it's very underpowered and turbo-ing it costs a fortune and decreases the reliability.

What are your thoughts about it? original 1HZ vs original 1KZ.

Also turbo-ed 1HZ vs original 1KZ.

Which one would win in terms of reliability and power?

PS: HZJ77 is extremely rare here though.. I've only seen 2 over the past 3 years on TradeMe. KZJ78 is plenty.
Haha bro, you are same with me! Fell in love land cruiser 7x series was 10 years old.. In my opinion....better choose kzj78 model because it is great power enough.
 
Bro~
In a nutshell: DO NOT get the KZJ77, get the HZJ77.

The KZJ is not going to be appreciably lighter in weight, a bit, but not hugely.

The 1KZTE engine here in Canada (Japanese imports) is not all that reliable.

The 1KZTE electronic pump is a bitch to deal with if (when, is more like it) it fails.

Get the HZJ77, slap a turbo on it and enjoy the reliability.

~John
Bro~ jus make sure your fuel pump service on time. If you have do that what I say.... You will feel not very disappointment to yourself^^
 

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