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I would just stick with what you have if it isn't causing you grief.
What happens if you spring a leak and then your $45 gal coolant is gone.
I would rather go buy the red stuff at your local truck shop and add water wetter or the amsoil alternative.
I'm going to give that amsoil a go with the next coolant change.
I know what you are saying, but I think it's pretty much a given that I'm going to crack the head if I keep doing what I'm doing. The thought of being stuck on side of the highway with a loaded truck/trailer, tired kids/wife on a hot day with cracked head is what's scaring me. Getting all that $hit towed back home and then wrenching on it when I should be on a trip is not appealing.
Could also just down grade to a little boler or trillium. But even then I think the engine will still get too warm. RTT maybe? Haha.
As I read more about the evans, I realize the biggest problem with it is the lower heat transfer capacity. The engine will actually run much hotter than it would with regular 50/50 mix coolant. This means higher engine oil temps and higher trans oil temps. Might not be good....
Ughh, never shoulda bought prado.
It seems like you should just buy a $500 3B and put it in the truck... its not like it is that hard to do ... you must have spent more on coolant and various other things by now?

It seems like you should just buy a $500 3B and put it in the truck... its not like it is that hard to do ... you must have spent more on coolant and various other things by now?
Yeah Gerg's truck. He did snap a crank at 25lbs of boost but heck at $500 they are cheap.
Yotahed is pumping 20lbs of boost into his right now with the pump dame well maxed out.
He would be the person to test the limits of a 3b. The h55f doesn't hold up well under load towing in 5th gear though.
Chances of you pulling anything up grade in 5th is low as the thing does not make that kind of power.
Its a way cheaper alternative than the 1hz or 1hd-t route. A 5 speed 81 comes up every few months for the 10k mark.
If I was to do it all again it would be the route to go.
I towed a trailer across canada including through the Cocahalla ... I had to slow down and keep an eye on the Pyro but no problems. I know when Cam had his setup with the intercooler it was MUCH better in terms of Pyro temperatures.
Mine I daily drove at highway speed including with headwinds and didn't have any issues, at some point I'd love to put an intercooler in though.
Hey Toshi, what time of year was it when you did that trip across Canada?
Ah it sounds like you have it tuned conservatively. People think I am nuts running 20lbs of boost into my 1HZ.
12mm pump should be on in the next month and with the new turbo I am working on I'll be doing 25lbs of boost.
Good EGTs/AFRs I shouldn't have any problems what so ever.

It was August, up to 38C in Saskatchewan. F***in hot! Especially with the rear heater lines exposed by the passengers feet.
That's good to know, thanks. Might seriously consider the 3B-T. Will have to look closer at yotahed's 3B-T swap in his LJ78....
I think you would be safe under the weight of your truck.. I once hauled a BJ60 down from Courtney with a non turbo BJ60, she was a slow go but it still made the trip... Big improvement on the 1985 plus way bigger lifters and the 5 bearing config...
Just pulled the head off the BJj74 left hand conversion and found number 2@3 cyldinders with heavey scoring on the cylinders which caused extreme blow by, ****ty part is the engine still ran like a champ..
Real problem was the temp sensor was obviously not working and the owner had not check his coolant for quite some time..
We will be putting a 13BT with 140K into it I think?
This 3b is worth rebuilding but at what cost, new head and complete rebuild..? 1700 head,3K to 4K for rebuild..
Rob
Hey Rob, dang, that sucks about that 3B. Hopefully you can get it sorted out ok for the guy. Coolant must have run real low and made for overheated out-of-round cylinder walls? Is that Jon's 13BT you're talking about?
Generally speaking with my LJ, if I go to the effort of a swap, I'd want to be as close as possible to the ideal engine before having to modify it. Doesn't take long before upgrades/rebuilds exceed the cost of just getting a better engine... Hence why I was thinking a low km 13BT, as it's pretty much what I want out of the box.
