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I know this site seems to be primarily about conversions for 4X4 trucks, but you have all been a lot of help to me and I wanted to share what I have been building to say thanks. It's a 1965 Chevy C10 that belonged to my wife's grandfather. This is how it looked When we recovered it in 2016, literally 15 minutes after we pulled from under the tree. It had been sitting under a tree since he died in 1988.
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After Disassembly and a lot of work, we got the chassis rebuilt with front spindles and disk brakes from a 1972 3/4 ton.

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It was at this point that I began thinking about an engine swap, and this being an old farm truck, I got the crazy notion to install a tractor engine.
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Found an old Perkins 4.236 with 4 speed SM465 mated to it. This thing ran beautifully and had an incredible sound, but being a very tall engine, I gave up trying to make it fit after a year and a half. (I know some of you will say that it would have fit very easily, and that is true if modified the frame - but cutting up the frame is something I didn't want to do) Biggest issue was the front sump oil pan and the large Chevy cross member.
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After selling the Perkins set up, I kind of felt like I was stuck with installing another diesel engine because I had already changed the gears in the rear end to better match the diesel RPM range. I soon came across this web site Because I was considering the Cummins 4BT. But Then found this branch dedicated to the the Isuzu 4bd series of engines. Because Isuzu has had a long standing relationship with Chevy, I felt like this was not too much of a stretch to install a Japanese engine in an American classic. I'm glad I made that choice. I think it was the right one. I soon found a donor engine that was VERY well used and in desperate need of attention.

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This engine, a 1986 4bd1T ended up having a cracked block at the base of one of the cylinder skirts and a spun rod bearing that chewed up the crankshaft journal. Thanks to this web site, I knew that I could combine two different models. I found another engine, a 1994 4bd2TC that had a cracked cylinder head and began the task of making one good engine out of the two broken ones. I made my own Sleeve puller with some threaded rod, a piece of hardwood, a ball bearing and some nuts and washers run through some extruded aluminum and .100 stainless steel supports.
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Again, thanks to the part number thread on this site, I sourced a pile of new parts to begin making the new hybrid 4bd2TC block with 4bd1t head. I bought 4 Clevite cylinder sets that included the liner, 4bd1T piston and rings all together so I was sure that they would all be matched and work together well. Also installed all new Clevite camshaft, rod and main bearings.
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Oops, System wont allow me to attach any more photos, I 'll have to add another post to continue. . .
 

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. . . Continued
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Too many hours of cleaning and sand blasting to count.
I used the broken 4bd1T block and the isuzu MSA5d to mock up my engine and transmission mounts
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Fabricated engine mount bases out of a block of aluminum and used the original Isuzu mounts.
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After mounting the engine I began adding the accessories and doing some mock up of other parts to see how things were going top fit.
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Just a few more pictures
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I ended up using the 4bd1T intake, fuel pump and fuel filter housing.
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So that's it. Currently waiting on clutch parts to mate up the transmission to the engine. I know that I am still a long way from being finished, but just wanted to say thanks to all of you for sharing your knowledge and making this rebuild and install a pretty smooth endeavor so far. I hope this encourages others to try an Isuzu 4bd series engine in their own project.
 

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1964 Chevy C10, Cummins ISB170, Allison 1000 5 speed, full float 9”, ECU Tune, 5/7” static drop
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Great work. Looking forward to seeing more.
 

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Just a few more pictures View attachment 129821

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I ended up using the 4bd1T intake, fuel pump and fuel filter housing.
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So that's it. Currently waiting on clutch parts to mate up the transmission to the engine. I know that I am still a long way from being finished, but just wanted to say thanks to all of you for sharing your knowledge and making this rebuild and install a pretty smooth endeavor so far. I hope this encourages others to try an Isuzu 4bd series engine in their own project.
where U find ur bell housing? they have anymore. Nice Work, can't wait to see more
 

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where U find ur bell housing? they have anymore. Nice Work, can't wait to see more
Yes, I have another bell housing. Bell housings came with the engines. I do have various engine parts to sell in the future because I used both a 4bd1T and a 4bd2TC to make one good engine. So a lot of leftover parts will be available, but im not at that point yet.
 

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Yes the way all swaps should be done...,Nice job.
Thanks for the words of encouragement and thanks again to everyone for generously sharing your experience and knowledge about these engines. I will continue to rely on all of you as I move forward with this build.
 

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Nice work. What turbo do you intend to run? The free-floating T25 you've got on there right now is very slow and lazy. The 1986 may have had an IHI RHB6 which was a good turbo but not supported for parts or rebuild.
Holset HE221, HX30 (6cm) or MHI TDO4HL-19T are solid options.
 

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Nice work. What turbo do you intend to run? The free-floating T25 you've got on there right now is very slow and lazy. The 1986 may have had an IHI RHB6 which was a good turbo but not supported for parts or rebuild.
Holset HE221, HX30 (6cm) or MHI TDO4HL-19T are solid options.
You are correct. The 1986 4bd1T did have an IHI RHB6 and the one in the pictures is the Garrett that came off of the 4bd2TC. I was really just hanging it there to get an idea about spacing/packaging and routing of the exhaust. Both of these turbos I have are scrap metal - were extremely neglected and I don't trust them and so I will have to install a new turbo. I have read all of you posts about turbos suitable for this engine and the one I really drool over is the Borg Warner EFR6258. That's pretty aspirational. The more realistic and affordable option is the HE221W as my first choice and then probably the TDO4HL-19T. I have a lot of work to do before I get to the turbo tho.
 

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Wow you have clearly taken your time and done some fine work to get where you'er at! Please keep all of us posted on your progress! Greetings from Montana by the way!
i too am in the process of combining 4bd1 pimp, lines and head into a 4bdt2 block! One of my mini problems is what to put it in after it is put together ! LOL
 

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You are correct. The 1986 4bd1T did have an IHI RHB6 and the one in the pictures is the Garrett that came off of the 4bd2TC. I was really just hanging it there to get an idea about spacing/packaging and routing of the exhaust. Both of these turbos I have are scrap metal - were extremely neglected and I don't trust them and so I will have to install a new turbo. I have read all of you posts about turbos suitable for this engine and the one I really drool over is the Borg Warner EFR6258. That's pretty aspirational. The more realistic and affordable option is the HE221W as my first choice and then probably the TDO4HL-19T. I have a lot of work to do before I get to the turbo tho.
The HE221 is more robust than the EFR6258. A few people had the BW's turbine wheels let go. That doesn't happen with the Holset. I personally have a built up TD04HL-19T to fit, but I just can't get the time to fit it.
The TD-4HL-19T is a close relation to the HE221, the 19T is more efficient, the 221 is built for higher boost.
 

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Nice work. Looking forward to seeing your approach to a shifter.
Thanks, I think I have the shifter worked out. I'm using the original parts, just reconfigured with push/pull rods instead of cables. It does require a little more clearance above the transmission.
 

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The HE221 is more robust than the EFR6258. A few people had the BW's turbine wheels let go. That doesn't happen with the Holset. I personally have a built up TD04HL-19T to fit, but I just can't get the time to fit it.
The TD-4HL-19T is a close relation to the HE221, the 19T is more efficient, the 221 is built for higher boost.
Dougal, Wow, there are a lot of options for the TD04HL-19T. I just did some searching. I didn't realize that so many OEM's use some variant of this turbo. What housing would you recommend I keep my eyes open for? Or should this question be posted in another thread? Thanks
 

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Dougal, Wow, there are a lot of options for the TD04HL-19T. I just did some searching. I didn't realize that so many OEM's use some variant of this turbo. What housing would you recommend I keep my eyes open for? Or should this question be posted in another thread? Thanks
6cm turbine housing for general use, 5cm for high altitude.
 
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