Engine options for a 75 series?

[Wayne J]

i have heard good and bad about the V8 chev diesels. they are bad for breaking blocks and cranks apparently. 4BT's start at 105hp/260 ft/lb. this is what i have. the aftercooled ones ( either air/air or jacket water/air. ) are the 120hp/290ft/lb ones. the gearing i saw was the major drama. qmr want $5k from memory for a complete good runner with the 'cruiser adaptor plate. i bought a good runner from them, and i had to replace the crank thrust washer ( no big deal. ) and some gaskets. i am a member on 4BTswaps.com, it is a goldmine of swap information. a few people on there are doing 80 ser. swaps as well. i reckon the cheapest way out if you have an FJ75 is to find a complete rusty or rolled diesel 75 and swap the gear over. sell off what you don't use and probably profit. that or just buy a diesel one.

Thanks Briney.
You know, I have been coming around to a similar conclusion that maybe I ought to be buying another whole wreck and/or complete new project vehicle, and gradually rebuild it from the ground up if need be. That way my ute won't be off the road (in a bad way!) for ages and I can do it properly how I really want it.

Trying to get everything I need in one fell swoop ain't gonna happen and you can be sure there will be unexpected problems in even a so-called straight forward engine swap...

In the meantime I might just put the 3F on gas, and maybe EFI if I can find it, and improve the intake and exhaust. It seems a much simpler option right now

But I have to say, I do like the sounds of the 4BT, and the price isn't too bad at all.

Cheers

[Wayne J]

Thanks also for all the other replies everyone.

If I did opt for a petrol V8 it'd have to be a later EFI model on gas. Based on my experiences owning a 2F previously and various carby V8s, I think most modern V8s should have better economy over the 2 and 3Fs, some being better than others of course.

The 4BT does sound worth exploring - regardless of engine, I reckon I really need to see some of these conversions in the flesh to get an idea of what they are really like in Landcruisers performance-wise etc.

Thanks

[roadkill]

Hi,

My dad's old 60 series 3f was gas/petrol and i would highly recommend just simply going gas. His used to get 20l per 100k's for over 15 years!! That works out to be about $50 for your 360k's. Even your turbo diesel 10l/100k's works out to be over $60 for 360k's.

Food for thought.

bEn

[Wayne J]

Hi,

My dad's old 60 series 3f was gas/petrol and i would highly recommend just simply going gas. His used to get 20l per 100k's for over 15 years!! That works out to be about $50 for your 360k's. Even your turbo diesel 10l/100k's works out to be over $60 for 360k's.

Food for thought.

bEn

Hi Ben,

Thanks for the reply mate, and yes I think you're right about simply gassing the 3F. It'll almost halve my fuel costs in one stroke. The 3F isnt all that bad off-road or around town where I live to be honest. It really only lacks accelerations/overtaking power really - but I'm also used to my R34 Skyline with 280RWKW, so anything else seems lacking anyway really . I will make a point this week of finding a suitable gas installer and try to arrange for the conversion to be done. Cheers

[2jzhilux]

what about making it dedicated gas and making up a turbo manifold and turbo the 3f

[{Mr Crabs}]

Why don't you just slap in a 308 on gas. I sure if you shop around you could find one quite cheap.

One of my mates had a GQ with a 308 this was far better perfomance than the old 4.2p.
Adaptor plates would be easly found,sure a LS1 would be better but the require a lot af work to run on gas and far more expensive to buy.

Case

[roadkill]

Hi,

From memory it's about 2-3k just for the adaptor kit for a v8. You'll basically then wanna rebuild it. Then install the gas system. So far you're up to about 6k, maybe more and for what??

Just going the gas system is probably the smartest and most economical option, that is unless he wants to enter rock climbing events etc in which case you'd buy an fj40!!. Sure, the 3f isn't the best engine but it does it's job in the place it was originally put. The 2f i think was better, seemed to have a bit more torque and revved higher but drank about 50% more fuel. Nothing comes for free.

I don't know how you'd go doing turbo on gas but that's not a good combination when you're stuck on the beach!!!

I'd also suggest at having a look over ebay and see what's there. You might find a rusted out wagon as a perfect donor that already is on gas. Could save a bit of money there.

Lemme know how you go and how much they are going to set you back for the install.

bEn

[Wayne J]

what about making it dedicated gas and making up a turbo manifold and turbo the 3f

Would be nice, but I'm not sure about putting a turbo on such an old design? Might be okay, dunno... I'd have to rebuild the whole engine for some peace of mind and I think it would work out rather expensive?

[Wayne J]

Why don't you just slap in a 308 on gas. I sure if you shop around you could find one quite cheap.

One of my mates had a GQ with a 308 this was far better perfomance than the old 4.2p.
Adaptor plates would be easly found,sure a LS1 would be better but the require a lot af work to run on gas and far more expensive to buy.

Case

I think now I'm just gonna take the simplest/cheapest route and do what I can with the 3F.

If I can get the complete injection gear (or complete 3F EFI engine) even better.
But aside from that I think I'll just gas it and improve the exhaust system, and anything else that I can without going to too much trouble, Cheers

[Wayne J]

Hi,

From memory it's about 2-3k just for the adaptor kit for a v8. You'll basically then wanna rebuild it. Then install the gas system. So far you're up to about 6k, maybe more and for what??

Just going the gas system is probably the smartest and most economical option, that is unless he wants to enter rock climbing events etc in which case you'd buy an fj40!!. Sure, the 3f isn't the best engine but it does it's job in the place it was originally put. The 2f i think was better, seemed to have a bit more torque and revved higher but drank about 50% more fuel. Nothing comes for free.

I don't know how you'd go doing turbo on gas but that's not a good combination when you're stuck on the beach!!!

I'd also suggest at having a look over ebay and see what's there. You might find a rusted out wagon as a perfect donor that already is on gas. Could save a bit of money there.

Lemme know how you go and how much they are going to set you back for the install.


bEn

Will do.

I'll bet some wrecked 75 series diesel or petrol on gas will come my way after I've gone and had a new system fitted ')

Ultimately I think I'll just keep it simple with this ute, and later on start a long term project ute so I can stay on the road (and off of it) as well.

[cambelt]

The head between the 3FE and the 3 F is different , the 3FE manifold wont fit a 3 F head , It can be done if you get a 10mm plate made with cutouts for the injectors ,
3F is a great engine if you live in cold climates , it is useless in the hotter parts of oz.
Dave

[Wayne J]

The head between the 3FE and the 3 F is different , the 3FE manifold wont fit a 3 F head , It can be done if you get a 10mm plate made with cutouts for the injectors ,
3F is a great engine if you live in cold climates , it is useless in the hotter parts of oz.
Dave

Thanks for the warning Dave.
I might as well try to source a whole engine plus computer etc then if I want the EFI - unless I get lucky and find just the head and a complete EFI system...

I do indeed live in a cold climate now (Tassie).

I used to have a 2F Landcruiser up in the Northern Territory - never a heating issue with that particular motor... from memory it had quite a bit more grunt than this 3F has as well.

Cheers

[MRMOPARMAN]

you can get adaptor kits to bolt up falcon 6's to cruisers. i reckon this could be a wise move.

AU engines are about $400-600 and makes similar power to the 1fz

turbo stuff is a piece of piss to get for them, they can take a beating, you can get parts ANYWHERE for them, they are resonable on fuel.. although in a cruiser id shove 200l of gas tanks under the sucker.

[Wayne J]

you can get adaptor kits to bolt up falcon 6's to cruisers. i reckon this could be a wise move.

AU engines are about $400-600 and makes similar power to the 1fz

turbo stuff is a piece of piss to get for them, they can take a beating, you can get parts ANYWHERE for them, they are resonable on fuel.. although in a cruiser id shove 200l of gas tanks under the sucker.

Funnily enough MRMOPARMAN this option had crossed my mind the other day, for all the reasons you mention. It's a pretty good option really when you think about it. I've decided to go ahead and stay with this 3F on gas for now simply for practical reasons, and start a project vehicle in the near future. I reckon if I don't go diesel or V8, then in terms of a straight six, the AU engine would be a great choice, maybe even an XR6 turbo engine? Cheers