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The 2.4/2.7L Toyota engines are known for their extreme longevity, and there are even some reports on here of 3.0L V6's pushing over 250k. After hitting 150k today in my truck, I am curious how much longer other 3.4L's have gone without being rebuilt. I drive the shit out of my truck, about 3k a month and it still feels as strong as the day I bought it at 92k. Should I start saving up now for a rebuild?
I'm new to the 5vz family and maaaan. These things are truly an engineering marvel. Non interference belt driven nice torque having machines. Nothing bad to say about them.
 

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I have almost 320k miles on my 2001 4Runner. Needs things like a new timing belt/water pump, new radiator, and cat converters. Other than that, I’ve had the valve cover gaskets replaced. It’s starting to leak a little oil, but I think I can live with that
 

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My 02 V6 4x4 TRD has the original clutch, timing belt and water pump in it at 212k miles(probably higher due to changing tires to 285/75r16 after stock 265/70/r16 wore out at 35k miles). I admit i haven't been great on those things (changed oil every 10k with syn mobile 1), will be changing the clutch, headers(PS leak under load) and rest of exhaust system when I change it.
 

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Not sure if I ever posted in this thread..

My 96 Taco 4x4 3.4 gave up the ghost at 230K a few months ago with a blown head gasket (actually drove it for years leaking water into the cylinder). Crank case full of sludge and it still ran great the day I pulled it out.

Went and picked up a used JDM engine for $1200, swapped a bunch of parts over and just fired it up yesterday and its smooth as silk. Did the timing belt, water pump, motor mounts and clutch while it was apart...should be good for another 100k!
 
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