Lexus V8 or 4.5 EFI in 80 Series LC 4.2D





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  1. #1
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    Default Lexus V8 or 4.5 EFI in 80 Series LC 4.2D

    I'm asking this on behalf of a mate of mine who lives in the sticks. However, I wish it was me asking, I'm green with jealousy..

    He bought an 80 Series Land Cruiser 4.2D (M) from one of his dad's friends with 285 000km on. The body has been resprayed and the suspension overhauled, so it's all very nice. Problem seems the engine is dog tired and very close to retirement.

    He wants to know if he can pop a Lexus V8 or Toyota 4.5 EFI in without any problems? Surely the petrol and diesel models came out with the same gearbox and drivetrain? This then wouldn't be a problem?

    If this is the case, why does everyone not just buy the diesels and do the conversion as the diesels are much cheaper? Can the same be said for the Prado 90 KZTE and doing a Lexus conversion?

    I'm also considering this option then.. (in due time)

    Thanks for your imput
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  2. #2
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    Hier sal manne wees wat meer kan byvoeg maar die 4.5 EFI motor is BAIE duurder as die 4.0L Lexus motor of is dit die 4.7 Lexus? Ek het al baie gehoor van ouens wat elektriese probleme het met die 1UZ-FE daarom verkies mense steeds die 1HZ of 1FZ vir reliability al is hy duurder.
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  3. #3
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    Rather sell that 1HZ Diesel 80 again, and buy an 80 with the 4,5 carb or EFI engine (GX or GXL), or the VX 80 TDi (1HD 12 Valve TDi).

    Same difference (money wise), but you retain originality.

    Else, if he REALLY has to do a conversion, go for Lexus V12.

    The 80 VX UK Spec came with a manual TDi , awesome car.

    So did the 80 GX (4,5 Carb), and the GXL (EFI motor).

    In petrol, I like the 4,5 Carb in the 80........smooth as butter.

    Maybe that's just me - I'm sort of a purist here, I guess.

    Whatever you do - do NOT put the Lexus el cheapo Sedan engine in, that thing has no torque, it's a high-revving engine.
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    ek sien die v8 lexus kom amper altyd saam sy gearbox. Enigste import wat sy gearbox saam het?? wonder net hoekom dit so is. Ek sal vir die lexus gaan.
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  5. #5
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    @ Sandboarder.. Ja, reliability is 'n issue, want hy wil gaan overland. Ek het al Lexus V8's gesien vir R 6 500, en 'n EFI vir R 25 000... Groot verskil! Watter het beter output (kW/Nm) ? En wat is die 1UZ-FE, 1HZ en 1FZ in leke terme..

    dankie
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    Krebs.....I suggest you PM David Helfrich. He went through the pain of replacing his 4500 80 series carb engine with a 4500 EFI. It turned out that there was all sorts of complications that ended up costing a lot of money.

    I will also send him this link

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    @Petri.......FYI David replaced his carb motor due to it cutting out offroad when driving angles. I'd be worried about the weight of that V12!

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    The Lexus motor is fine, but the conversion needs to be done extremely meticulously. Especially if is to be used for overlanding.

    But yes, it is not a bad conversion at all and the Lexus is quite a bit more economical than the 1FZ.
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    Hi
    Did the conversion from 4,5 carb GX to a 79 (bakkie) efi 4,5 .
    My cruiser is used 90 % in the dunes and the carb motor has a splutter when hitting angled dunes at speed.
    Power increase from 110Kw to 156
    I have 35" muds
    Give me a call if you want to discuss
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    4500 EFI but change the gearbox as well
    Christo Davids
    Land Cruiser 105 4500 EFI
    Hilux 2.8GD6 Extracab 4x4

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    Thanks guys.. Dankie ouens. Sal hom sÍ. Dit is iets waaraan ek ook al lankal aan dink. Wil die Fortuner vir my vrou gee en 'n Hilux DC 4x4 D4-D koop vir daaglikse gebruik en dan 'n LC 80 of LC 100 as boswa en overlander.

    Is die petrol soveel beter as die diesel? En die wat ek op Autotrader en ander plekke sien, sommige het diff voor en agter, sommige middel en agter.. Is dit mods of standaard? En is die LC 100 soveel beter as die LC 80..

    Thanks
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    Quote Originally Posted by Henris View Post
    The Lexus motor is fine, but the conversion needs to be done extremely meticulously. Especially if is to be used for overlanding.

    But yes, it is not a bad conversion at all and the Lexus is quite a bit more economical than the 1FZ.
    The 4 litre Lexus is a great motor .. so are the other engines.

    Beauty is that if my engine has to be replaced for some reason, a replacement engine will cost only about R5 000, much cheaper than many (most ?) of the other engines, or an overhaul for that matter
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    Quote Originally Posted by Christo Davids View Post
    4500 EFI but change the gearbox as well
    +1

    or just make sure it is a H151 gearbox, I think I have read somewhere that some diesel 80's had it in.
    LC 105 GX 4500 EFI

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    None of the 80's had that Hilux gearbox. The boxes in the 80 are as hard as nails.

    Not very friendly for speed shifting, but then the car was never intended as a racer.
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    Thanks, I'll forward this thread to him. What is the approx cost of such a conversion, gearbox, engine and labour? Anything you can do to tame the fuel consumption of the 4500 EFI a little?
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    Quote Originally Posted by David Helfrich View Post
    Hi
    Did the conversion from 4,5 carb GX to a 79 (bakkie) efi 4,5 .
    My cruiser is used 90 % in the dunes and the carb motor has a splutter when hitting angled dunes at speed.
    Power increase from 110Kw to 156
    I have 35" muds
    Give me a call if you want to discuss
    083 303 6066
    Tell them what you spent David

  17. #17
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    Red face

    I used my existing gearbox , 79 efi motor is a perfect fit , used a Spitronic management system.
    Engine : R 25k
    Spitronic :Should have been about R 4,5 k
    Labour : Make sure you get someone that has done the conversion before , as it can work out incredibly expensive
    In the end i could have gone the Lexus v8 route for around 30k less
    Last edited by David Helfrich; 2012/08/15 at 11:08 AM. Reason: added more

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  18. #18
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    Thanks David, no as expensive as he seems to think it would be. One last thing, could anybody recommmend a good indy Toyota specialist in the Pretoria/Midrand/Centurion area?
    2014 Fortuner D4-D 4x4
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  19. #19
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    DON'T DO IT!!!!!!!!!!!!!!!!!!

    I also had an 80 experience with an 80 and a Lexus conversion. After 4 different "so called specialists" and lots of school money wasted, I wished the original motor was still in.

    I also know of other land cruisers owners who has opted this route and they all also wished they never did it. Someone on the land cruiser forum sent me a pm and asked advice, I told him not to opt this route and why. He still went ahead with this conversion and 3months later he sent me another pm stating that he could kick himself for not listening to my advice.

    PM me for more details.
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  20. #20
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    I will go for the 4.5efi. This might be the more expensive route but the 4.5efi is one of the best engines ever build. It can take the hammering day in and day out. I have done numerous conversions in my life and if not done right you have ruined a vehicle. The 4.5efi with its gearbox will be a bolt in conversion where you can use all standard Cruiser parts. With a Lexus a lot has to be modified and manufactured thus complicating the conversion.
    It is not what you buy its what you build.

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