Prado 120 Petrol Engine Swap Into 100 Series Landcruiser?

[hulbyw Senior Member Find all posts View Profile Close hulbyw]

A friend is considering swapping a petrol 120 series into a petrol 100 series to gain better fuel economy. Anyone have any knowledge of a similar swap and how it worked out?
Cheers

[Daniel150 Member Find all posts View Profile Close Daniel150]

Hi mate.
The idea is a little flawed.
Both engines are similar in power and torque out puts. The Prado v6 will give about 20kw more.
Both are thirsty but are pushing around large vehicles.
I’d get 18 round town and 25ish towing in the v6 Prado.
Mates 100 does 20 round town and 28ish towing. Makes sense for the heavier vehicle. Both had the same mods.
The cost and hassle involved in the swap would be far better spent on fuel.
My advice, waste of money. Spend it on a blower for the 4.5 and enjoy it

[GeeWhizz Senior Member Find all posts View Profile Close GeeWhizz]

Near impossible. Thesedays, the engine is not just an engine that fits and bolts in. The engine's ECMs must be compatible with everything else that's in the vehicle and "talk the talk" on the CAN bus.

[mamaji77111 Lurker Find all posts View Profile Close mamaji77111]

My main concerns are fuel consumption and major repair costs. Right now I drive a 2011 Kia Sorento which is an excellent vehicle in terms of comfort, features, fuel costs etc. On the other hand I really like toyota too, especially since my father used to own a 78 Prado when I was younger. Land Cruisers are very expensive in my country (trust me you don't want to know lol) so I need to make sure my investment is worth it.

[Seattle54 Lurker Find all posts View Profile Close Seattle54]

I think it's quite troublesome, takes your time and money but you can try if you want.

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