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Jeep Wrangler YJ
YJ Build Threads & Member's Rides
Diesel YJ Flat Bed Truck
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<blockquote data-quote="dieseljeep" data-source="post: 425126" data-attributes="member: 18592"><p>I don't think adding a 350 would be hard in a YJ, TJ, or CJ, it's just that all of those projects require so many little brackets and additions that when you're "finished", the end results are little things that will break more often and fewer people can help you. And I see it as, I can either find something from the factory that's pretty much exactly what I want or in the case of diesel, it's not really there, unless you want to drop $50k and now the emissions stuff will have to be removed for probably another $2k. Not to mention the cost of taxes and insurance. But you can probably find a JK with with the pentastar in it with low miles and it'll be 80% of what you want with very little work. I think I kinda like the JL a bit more than the JK, but I've never really messed with a JL. Still a Rubicon used for a JK isn't gonna be cheap and the JLs are so new, they aren't gonna be cheap. And there's other pretty good vehicles out there that Toyota makes that are pretty darn reliable and capable for a similar price point.</p><p></p><p>The 350 has other advantages as well, since you can get so many parts and accessories that are from some OEM and just use the best and most common that you can get almost anywhere. I still think it's all a headache, until you've done a few installs and probably a few installs of the same engine and every single time you'll probably do something slightly different. I would guess that even after 100 swaps, you'd still be making changes. The other issue I have is that I just don't like Carburetors. I just don't have luck with them. Seems like I'm always screwing up the choke or something and flooding the engine, or some part gets the tiniest particle of dust, or the ethanol in the fuel destroyed some line or something (had it eat a hole in a steel gas tank). Or a fuel shut-off solenoid malfunctions, something pulls a spark plug wire or something happens to the distributor, etc. I've even rebuilt carbs and distributors and immediately had faulty parts that wore out super quick. I've spent so many wasted hours on this stuff, that I really don't care for it.</p><p></p><p>Yeah I've heard the 4BTs are crazy loud. My 5.9 Cummins in my truck is, for one an inline 6, which is probably better balanced and then surrounded by sound insulation, but it's still kinda loud when you're outside. The 4 BT is just so tough, once it's setup. If something isn't quite right, they're pretty expensive from what I can tell to fix if you don't do it yourself and done know all the nuances. That's why I tend to want to get a new engine, swap it in and then get hundreds of thousands of miles on it and when it's done, pull it out and take it somewhere to be fixed properly and do it all over again. 4bts aren't the 6BTs though, which are just naturally a bit easier on everything, but obviously they are too big for a Jeep. Well unless it's the size of a Gladiator. I would suspect with some work, the vibrations could be dealt with. Sound IMO is harder on these Jeeps, because they're already so small and you just don't have great places for sound insulation I would think.</p><p></p><p>Kubota would certainly be very cool on paper, but I'd want one with a bit more displacement, because I would imagine that once make 2x or more HP than it was originally designed for that maybe there's be engine life issues, not to mention, you don't really know if the engine was worn out before you got it. I've been watching Grant's build closely, but I'd love to do a build with one of these if time and money, well money were no object.</p><p></p><p>VW TDI is high on my list. If a guy at work will finish a couple swaps before I get around to working on this, this may be my path, because part of the issues are integrating the electrical stuff. If my buddy figures this out, then I'm not too worried. Displacement is a bit of an issue though. I really want something that can have 300+ ft lbs, partly just because I want the gearing of a 3/4 ton manual transmission, but those are so heavy and bulky for no reason on a smaller engine and there just aren't many options that are easy. There's a way to get some gearing from a Toyota type transmission and build an AX-15, but I've yet to see exactly how to do this. I really want a 5 or higher 1st gear with a diesel motor (maybe all motors). 5.15 is somehow possible, but I don't know what parts to get nor have I pulled a manual apart and swapped out countershafts, gearing, input shafts, output shafts, bellhousings, etc. Using an AX-15 instead of a 3/4 ton transmission could save 100 lbs and some drivetrain length, which for an entire build adds up.</p><p></p><p>And then there's the R2.8 and the size and the ease of install makes a fair amount of sense. The emissions equipment it has is almost a wink and nod away from removal out of the crate, though that's probably $1,500 worth of waste just to get that engine to your door. EGR is an absolute negative for the build, and the DOC imo is a risk to use off-road, but honestly I think all catalytic converters are risky off road, though I'll still run them. I've also seen them light up a field and melt a vehicle down too.</p><p></p><p>But yeah small block is certainly a good option for a swap, but it's harder for me to justify since there's stuff out there kind of similar and I just don't go out passing people (for one I can't do that anymore). I like going slower and I like exploring more than going fast and tear through obstacles. But yeah that's probably not conducive with a 4BT unless I can find some really good sound deadening insulation.</p></blockquote><p></p>
[QUOTE="dieseljeep, post: 425126, member: 18592"] I don't think adding a 350 would be hard in a YJ, TJ, or CJ, it's just that all of those projects require so many little brackets and additions that when you're "finished", the end results are little things that will break more often and fewer people can help you. And I see it as, I can either find something from the factory that's pretty much exactly what I want or in the case of diesel, it's not really there, unless you want to drop $50k and now the emissions stuff will have to be removed for probably another $2k. Not to mention the cost of taxes and insurance. But you can probably find a JK with with the pentastar in it with low miles and it'll be 80% of what you want with very little work. I think I kinda like the JL a bit more than the JK, but I've never really messed with a JL. Still a Rubicon used for a JK isn't gonna be cheap and the JLs are so new, they aren't gonna be cheap. And there's other pretty good vehicles out there that Toyota makes that are pretty darn reliable and capable for a similar price point. The 350 has other advantages as well, since you can get so many parts and accessories that are from some OEM and just use the best and most common that you can get almost anywhere. I still think it's all a headache, until you've done a few installs and probably a few installs of the same engine and every single time you'll probably do something slightly different. I would guess that even after 100 swaps, you'd still be making changes. The other issue I have is that I just don't like Carburetors. I just don't have luck with them. Seems like I'm always screwing up the choke or something and flooding the engine, or some part gets the tiniest particle of dust, or the ethanol in the fuel destroyed some line or something (had it eat a hole in a steel gas tank). Or a fuel shut-off solenoid malfunctions, something pulls a spark plug wire or something happens to the distributor, etc. I've even rebuilt carbs and distributors and immediately had faulty parts that wore out super quick. I've spent so many wasted hours on this stuff, that I really don't care for it. Yeah I've heard the 4BTs are crazy loud. My 5.9 Cummins in my truck is, for one an inline 6, which is probably better balanced and then surrounded by sound insulation, but it's still kinda loud when you're outside. The 4 BT is just so tough, once it's setup. If something isn't quite right, they're pretty expensive from what I can tell to fix if you don't do it yourself and done know all the nuances. That's why I tend to want to get a new engine, swap it in and then get hundreds of thousands of miles on it and when it's done, pull it out and take it somewhere to be fixed properly and do it all over again. 4bts aren't the 6BTs though, which are just naturally a bit easier on everything, but obviously they are too big for a Jeep. Well unless it's the size of a Gladiator. I would suspect with some work, the vibrations could be dealt with. Sound IMO is harder on these Jeeps, because they're already so small and you just don't have great places for sound insulation I would think. Kubota would certainly be very cool on paper, but I'd want one with a bit more displacement, because I would imagine that once make 2x or more HP than it was originally designed for that maybe there's be engine life issues, not to mention, you don't really know if the engine was worn out before you got it. I've been watching Grant's build closely, but I'd love to do a build with one of these if time and money, well money were no object. VW TDI is high on my list. If a guy at work will finish a couple swaps before I get around to working on this, this may be my path, because part of the issues are integrating the electrical stuff. If my buddy figures this out, then I'm not too worried. Displacement is a bit of an issue though. I really want something that can have 300+ ft lbs, partly just because I want the gearing of a 3/4 ton manual transmission, but those are so heavy and bulky for no reason on a smaller engine and there just aren't many options that are easy. There's a way to get some gearing from a Toyota type transmission and build an AX-15, but I've yet to see exactly how to do this. I really want a 5 or higher 1st gear with a diesel motor (maybe all motors). 5.15 is somehow possible, but I don't know what parts to get nor have I pulled a manual apart and swapped out countershafts, gearing, input shafts, output shafts, bellhousings, etc. Using an AX-15 instead of a 3/4 ton transmission could save 100 lbs and some drivetrain length, which for an entire build adds up. And then there's the R2.8 and the size and the ease of install makes a fair amount of sense. The emissions equipment it has is almost a wink and nod away from removal out of the crate, though that's probably $1,500 worth of waste just to get that engine to your door. EGR is an absolute negative for the build, and the DOC imo is a risk to use off-road, but honestly I think all catalytic converters are risky off road, though I'll still run them. I've also seen them light up a field and melt a vehicle down too. But yeah small block is certainly a good option for a swap, but it's harder for me to justify since there's stuff out there kind of similar and I just don't go out passing people (for one I can't do that anymore). I like going slower and I like exploring more than going fast and tear through obstacles. But yeah that's probably not conducive with a 4BT unless I can find some really good sound deadening insulation. [/QUOTE]
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