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Hey there, I’m new here but have been on mud for a while… recently my engine blew up in my 1987 BJ75 Troop Carrier and I’m trying to find a cheap and reliable engine. Then a 1989 NPR popped up for sale near me for $2500 with 89,000 miles… no brainer. I’m just having trouble finding any adapter still available today to fit it up to my H55f tranny. Does anyone have one laying around or know any other work arounds to make it work? Thanks!!
 

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1986 or 1987 ?? NPR trucks that came with the GM automatic came from the factory with an adapter and dual flywheel setup that made the back of the engine look like the back of a Chevy. That's what I used and then an Advanced Adapter bell housing and clutch setup (chevy to Toyota kit). Downy made a kit as well. Kind of a rare find to run across an 87 NPR automatic these days.

That's the setup I did. Adapter, Isuzu manual flywheel, spacer, Gm flywheel, AA bell housing, H55. As far as an FJ60 goes, the added space of the adapter worked out well to keep engine off the firewall without doing driveline mods. I think the Almares kit put the engine right on the firewall.
 

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I forgot to mention, there was a company IDS Isuzu Diesel Swapper that made a kit that copied the rare factory NPR adapter mentioned above. I know they are out of business, but if you ran across a used one, it would work for you. It's actually their version that I'm currently using.
 

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1986 or 1987 ?? NPR trucks that came with the GM automatic came from the factory with an adapter and dual flywheel setup that made the back of the engine look like the back of a Chevy. That's what I used and then an Advanced Adapter bell housing and clutch setup (chevy to Toyota kit). Downy made a kit as well. Kind of a rare find to run across an 87 NPR automatic these days.

That's the setup I did. Adapter, Isuzu manual flywheel, spacer, Gm flywheel, AA bell housing, H55. As far as an FJ60 goes, the added space of the adapter worked out well to keep engine off the firewall without doing driveline mods. I think the Almares kit put the engine right on the firewall.
GM automatics would have been very rare. More common was the Jatco (which had it's own bellhousing to fit the 4BD1T). The later 4BD2T was paired with an AISIN who also made the landcruiser automatics so that stuff can be conjured together.
 

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GM automatics would have been very rare. More common was the Jatco (which had it's own bellhousing to fit the 4BD1T). The later 4BD2T was paired with an AISIN who also made the landcruiser automatics so that stuff can be conjured together.
I think in America the Aisin didn’t come into play until the 4HE1T. The 4bd2t’s still all had the Jatco.
 

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Discussion Starter · #6 ·
1986 or 1987 ?? NPR trucks that came with the GM automatic came from the factory with an adapter and dual flywheel setup that made the back of the engine look like the back of a Chevy. That's what I used and then an Advanced Adapter bell housing and clutch setup (chevy to Toyota kit). Downy made a kit as well. Kind of a rare find to run across an 87 NPR automatic these days.

That's the setup I did. Adapter, Isuzu manual flywheel, spacer, Gm flywheel, AA bell housing, H55. As far as an FJ60 goes, the added space of the adapter worked out well to keep engine off the firewall without doing driveline mods. I think the Almares kit put the engine right on the firewall.
1987 BJ75
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the NPR I came across is a 1989 with the MSA5D manual. Body is shot leaf spring mounts arent connected to the frame anymore, frame is rusted in half in more than one area. BUT... that engine starts with a crank of the started and transmission feels great. So I bought it for $2500 and drove it 700 miles from Kentucky to North Carolina. Absolutely terrifying drive but it made it nonetheless. Cosmetically ruined but mechanically perfect.
410+ PSI in all cylinders
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I'm excited to take on this swap. I think I may try to keep the Isuzu bell housing along with the engine, make an adapter plate for the Isuzu bell housing to H55F transmission alone. Use a 13BT clutch for the added power from the old 3B motor that was in the troopy and hope that the 13BT clutch will work together with the Isuzu pressure plate and flywheel!

If anyone has any recommendations or thinks this has no way or working please let me know! Trying to learn the most I can so if someone has experience that I don't I'd love to hear it. Never swapped a non-toyota engine into a Toyota, all new way of thinking about things

Here's a video I took incase the swap loses momentum and I need to sell the engine/tranny, engine cold start at 1 minute
 

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Great score and great photos. Starting with the truck looking okay and then "holy crap"!

That MSA-5D is a good gearbox with the wrong ratios. 5th is 1:1. Taking the bellhousing off it to make an adapter to the Toyota could be easy or could be a mission. Document it well and see if others follow.

Factor in a better turbo.
 

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The H55 only has a 15% OD ratio in 5th gear. Not that well suited for highway trips if you like to cruise over 65 MPH. That is unless you have 35" or bigger tires. Over 2250 RPM's these engines make lots of noise and consume lots more fuel.
Most other transmission out there, Auto or NV4500, the OD is around 30%
 

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There is a company that makes a bellhousing adapter to the nv4500 still, see it on eBay occasionally, and there is an nv4500-HF2AV adapter. That could work with your LC’s axle offsets. Might be cheaper/easier in the long run.
I just got one of his adapters and installed it yesterday. Company is "roamerdrive" out of CA. Be warned though if you're adapting a 4BD that was on an auto trans to a manual trans, it isn't straight forward, even with roamer's flywheel. The crank snout is an issue.
 

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I just got one of his adapters and installed it yesterday. Company is "roamerdrive" out of CA. Be warned though if you're adapting a 4BD that was on an auto trans to a manual trans, it isn't straight forward, even with roamer's flywheel. The crank snout is an issue.
Nice. Throw up some pics If you get a chance. Is it just getting the centering snout out, or is there more to it?
 

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Nice. Throw up some pics If you get a chance. Is it just getting the centering snout out, or is there more to it?
I couldn't remove the crank snout with the tools I had at my disposal. I heated it, hammered it, etc and it wouldn't budge. I have a lathe though, so what I ended up doing was I bored out the flywheel center hole some to fit around the snout, cut the snout short with a die grinder, and turned down the input shaft bushing to fit inside the snout. Not a perfect solution by any means, but a workable one.
 

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Another option for the crank bushing removal, weld a nut to the end and use all thread to back it out. I ended up reusing the bushing after I had the ID opened up to receive the pilot bearing.

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Hey man2112, are you shifting gears yet with your RD bellhousing installed? If so, could you share what part numbers your using from the flywheel back? I haven’t been able to get the clutch disc to release with the combination I’m using.
 

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Another option for the crank bushing removal, weld a nut to the end and use all thread to back it out. I ended up reusing the bushing after I had the ID opened up to receive the pilot bearing.

View attachment 134153
View attachment 134154

Hey man2112, are you shifting gears yet with your RD bellhousing installed? If so, could you share what part numbers your using from the flywheel back? I haven’t been able to get the clutch disc to release with the combination I’m using.
Oh man, welding a nut on would have been smart, I don’t know why I didn’t think of that 🤦🏽‍♂️
I installed a LUK 05-092, which is what roamerdrive told me to use on the phone. The clutch kit on their listing is incorrect. I haven’t gotten the engine up and running yet to tell
Another trick, for future reference, is mushing bread or grease in there and smacking a slightly smaller diameter dowel in, then repeat. I know it sounds like a joke, but I’ve seen one removed this way and heard of quite a few more.
ive seen AVEs video of how to do that before and knew it could be done, guess I was just dead set on doing it the first way I thought off as I was on a time crunch. Only had to weekend to use my buddies shop and couldn’t waste time.
 

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Discussion Starter · #19 ·
Alright, I'm back and progress has been made. I got mono the day I was heading down, but was still dead set on pulling this engine out now, luckily with the help of my dad and my friend we were able to pull it off even though I'm so much weaker than usual.
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Unbolted everything, the first day but there was one bolt we couldn't unbolt... the clutch had very low miles on it and whatever nice Kentucky mechanic decided to break off a bell housing bolt and just leave it for the next poor sucker. It was recessed into the bell housing, tried an EZ out... bad idea. EZ out snapped and then we had super hard metal we couldn't drill out or anything, tried welding not working, finally just went and got an angle grinder and sliced the bolt in half where the bell housing meets together. What a pain and I wasn't even doing the work on it...
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After that whole ordeal, we were ready to pull it, and we did. Relatively drama free, took a bit of persuasion but it came out.
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Sooooooooo, after more thinking. Gonna need to use the H55 bellhosuing and mate it to the Isuzu engine, vs my previous plan of using the Isuzu bellhousing and engine and mating it to the H55f. Just gonna try to make an adapter plate, no clue how but I'll figure it out with time, I'm stubborn enough.

a few diagrams I made quickly. Need to confirm everything more accurately. I made these but don't really know what to do with them haha. I bet they will come in handy at some point
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There is a company that makes a bellhousing adapter to the nv4500 still, see it on eBay occasionally, and there is an nv4500-HF2AV adapter. That could work with your LC’s axle offsets. Might be cheaper/easier in the long run.
Yes, I don't doubt it would be much better in the long run, plus that extra overdrive would be really nice. I'm a college kid, my first 3B in my troopy had the crankshaft blow into a bunch of pieces, and the 2nd 3B I put in started knocking 200 miles after I swapped it in... these two incidents aswell as buying a cheap box truck for the engine has sucked up any and all of my savings. Don't have another 2-3k at the moment to spend on a tranny plus all the other small stuff that goes with it. Maybe one day when I have more money saved up.

Factor in a better turbo.
Any recommendations? also should I get a new/different manifold along with the turbo? Thanks
 
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