Toyota diesel vs Cummings diesel...

This site may earn a commission from merchant affiliate
links, including eBay, Amazon, Skimlinks, and others.

A few years ago a FJ60 with what sounded like a 4BT pulled up next to me at a stop light, just in front of me.

1. It was loud at idle.
2. It was REALLY loud when he pulled away. So loud that I remember saying "Holy Crap" out loud when he drove away.
3. It belched black smoke when accelerating

I too (in the past) toyed with the dream of swapping in a diesel, but after experiencing that nightmare, I shelved that idea for good.

Granted it was a 4BT (I think/ definitely a four banger and not the modern R2.8) but the experience definitely left a rank taste in my mouth - from 50 feet away.
 
A few years ago a FJ60 with what sounded like a 4BT pulled up next to me at a stop light, just in front of me.

1. It was loud at idle.
2. It was REALLY loud when he pulled away. So loud that I remember saying "Holy Crap" out loud when he drove away.
3. It belched black smoke when accelerating

I too (in the past) toyed with the dream of swapping in a diesel, but after experiencing that nightmare, I shelved that idea for good.

Granted it was a 4BT (I think/ definitely a four banger and not the modern R2.8) but the experience definitely left a rank taste in my mouth - from 50 feet away.
yeah that was pretty much every f&%king brodozered dodge/gm/ford here in town. one guy was notorious for rollin' coal on anyone from the lights. he got schooled, large can urethane foam, 1/4" hole in an unconspicuous spot on the exhaust, empty can. no start. word got out what went down. don't see any rollin' now
 
yeah that was pretty much every f&%king brodozered dodge/gm/ford here in town. one guy was notorious for rollin' coal on anyone from the lights. he got schooled, large can urethane foam, 1/4" hole in an unconspicuous spot on the exhaust, empty can. no start. word got out what went down. don't see any rollin' now

ouchies 😬
 
My sprinter 2.7 turbo OM617 I think was smooth and quiet and don’t think I left any anti mosquito clouds on hard accel.
 
Gossamer

 
I almost went the 6bt route in my 80 series. However this was going to be my daily driver. I wanted power and smooth driving because of some of the work I do requires me to meet a lot of people. I also end up in some pretty bad neighborhoods from time to time and you want to be fairly blended in for that. I decided to go LS swap. If I have the AC on I can't even hear it idling and it doesn't draw any attention. 6bt has more power potential than a Toyota diesel and parts are easier to get. I would totally get a 6bt cruiser if I had slightly different circumstances. I've driven Toyota diesels, they are fine, but would rather have a 6bt personally. I tow a fair amount of weight too so the 6bt would be nice for that as that's what it's made for. You have to weigh your options and needs carefully. The other issue I was concerned about with the 6bt route was the amount of lift required for the engine. I wanted to stay close to stock lift height.
 
Last edited:
I almost went the 6bt route in my 80 series. However this was going to be my daily driver. I wanted power and smooth driving because of some of the work I do requires me to meet a lot of people. I also end up in some pretty bad neighborhoods from time to time and you want to be fairly blended in for that. I decided to go LS swap. If I have the AC on I can't even hear it idling and it doesn't draw any attention. 6bt has more power potential than a Toyota diesel and parts are easier to get. I would totally get a 6bt cruiser if I had slightly different circumstances. I've driven Toyota diesels, they are fine, but would rather have a 6bt personally. I tow a fair amount of weight too so the 6bt would be nice for that as that's what it's made for. You have to weigh your options and needs carefully. The other issue I was concerned about with the 6bt route was the amount of lift required for the engine. I wanted to stay close to stock lift height.
Thank you for your info....I’m looking at the diesel aspect for traveling reasons and reliability. I plan on doing a cross country trip within the next year or 2 and I hear a lot of people recommended diesel just for the overall reliability. I was going to just rebuild my 82 and go from there but for what I wanna do etc I think diesel makes I don’t wanna say more sense because of sure the 2F rebuilt is very reliable as well but I just hear how reliable the diesel’s can be? We pretty much wanna travel and live in and out of t(e rig,camp pretty much anyway we can and be able do go places we’d want...basically just living in it throughout our journey. I’m leaning more towards the Cummings being the parts are easier and reliability is there. I still have to do some more thinking/research. Thanks again for your info,appreciate it👍
 
There are as many opinions about diesel swaps as there are threads on MUD about them.

The 1Hx series of Toyota diesels are smooth, fast, and the naturally aspirated 1HZ is still being made today. You can buy every single part for a 1HZ brand new, and have it shipped here in four days from the Middle East. A lot of Cruiser specific shops here in the states stock tons of Toyota diesel parts, such as Cruiser Outfitters (@cruiseroutfit) and Valley Hybrids (@orangefj45).

A naturally aspirated 1HZ feels a lot like a 2F, or 3FE, but gets nearly double the fuel mileage- though don’t ever really consider fuel mileage alone as a rational reason to do a diesel swap- as you’ll fall waaaay behind in cost/benefit ratio.

You can easily turbo a 1HZ, but because it is an indirect injected diesel, you have to do it carefully, watching your EGT’s and boost. Done correctly they haul all kinds of @$$. I helped @davegonz with his swap a couple of years ago.

A 1HDT is an awesome motor (I drive an HDJ80 daily), and its bigger brother the one 1HDFT is even smoother and more fun. I myself in building 2 1HDFT cruisers as we speak.

And don’t forget the 12HT, the asynchronous growling beast. I’m currently having the one out of my HJ61 been rebuilt by @roma042987 , and I can’t wait to get it back on the road.

While you may have guessed by now that I am a Toyota diesel fan, I certainly have nothing against the other motors mentioned. I have wheeled with @The Phoenician and know how much work has gone into Big Red!

Keep this thought near the front of your head: every single 60 series is 30+ years old, and so are all of their parts. Almost all the diesels that anyone has mentioned (Toyota or otherwise), will eventually have parts availability problems- except the currently produced 1HZ and the Cummins R2.8. The 12HT is probably closest on the cusp of true parts availability procurement problems. Things are starting to be NLA that were available even a year or two ago. Don’t let that stop you, because global parts acquisition has never been easier. There are a ton of resources here on MUD and a lot of Cruiser specific shops in the states that can guide you and find parts for you. You can’t go down to AutoZone or Advance; you may have to wait for days for six weeks if something hard to find goes out.
 
The 2f can be very reliable once baselined well, however its low on power. For long trips some power is nice for if your towing or loaded down. Another diesel engine often ignored is the ford idi diesels. They are good engines. I was planning on taking my 80 to extended south America trips. A diesel is better for this I think. However I didnt want it purely for that. It was going to be my daily driver as well. And now with the pandemic it's looking like south America isnt going to work out. I knew when building the truck their would be a possibility it wouldn't work out for some unforeseen reason. Didnt think it would be because of a pandemic though. Again the benefit of the LS for my situation, it makes a nice daily driver. It's also very reliable and easy to work on, I think its easier to repair than the 2f honestly. So with that in mind, I wouldn't build a truck with a singular trip in mind. I would keep in mind its other uses as well. Just remember you have to live with whatever engine you pick every day too.
 
There are as many opinions about diesel swaps as there are threads on MUD about them.

The 1Hx series of Toyota diesels are smooth, fast, and the naturally aspirated 1HZ is still being made today. You can buy every single part for a 1HZ brand new, and have it shipped here in four days from the Middle East. A lot of Cruiser specific shops here in the states stock tons of Toyota diesel parts, such as Cruiser Outfitters (@cruiseroutfit) and Valley Hybrids (@orangefj45).

A naturally aspirated 1HZ feels a lot like a 2F, or 3FE, but gets nearly double the fuel mileage- though don’t ever really consider fuel mileage alone as a rational reason to do a diesel swap- as you’ll fall waaaay behind in cost/benefit ratio.

You can easily turbo a 1HZ, but because it is an indirect injected diesel, you have to do it carefully, watching your EGT’s and boost. Done correctly they haul all kinds of @$$. I helped @davegonz with his swap a couple of years ago.

A 1HDT is an awesome motor (I drive an HDJ80 daily), and its bigger brother the one 1HDFT is even smoother and more fun. I myself in building 2 1HDFT cruisers as we speak.

And don’t forget the 12HT, the asynchronous growling beast. I’m currently having the one out of my HJ61 been rebuilt by @roma042987 , and I can’t wait to get it back on the road.

While you may have guessed by now that I am a Toyota diesel fan, I certainly have nothing against the other motors mentioned. I have wheeled with @The Phoenician and know how much work has gone into Big Red!

Keep this thought near the front of your head: every single 60 series is 30+ years old, and so are all of their parts. Almost all the diesels that anyone has mentioned (Toyota or otherwise), will eventually have parts availability problems- except the currently produced 1HZ and the Cummins R2.8. The 12HT is probably closest on the cusp of true parts availability procurement problems. Things are starting to be NLA that were available even a year or two ago. Don’t let that stop you, because global parts acquisition has never been easier. There are a ton of resources here on MUD and a lot of Cruiser specific shops in the states that can guide you and find parts for you. You can’t go down to AutoZone or Advance; you may have to wait for days for six weeks if something hard to find goes out.
Thank you for all your input,greatly appreciated!
 
The 2f can be very reliable once baselined well, however its low on power. For long trips some power is nice for if your towing or loaded down. Another diesel engine often ignored is the ford idi diesels. They are good engines. I was planning on taking my 80 to extended south America trips. A diesel is better for this I think. However I didnt want it purely for that. It was going to be my daily driver as well. And now with the pandemic it's looking like south America isnt going to work out. I knew when building the truck their would be a possibility it wouldn't work out for some unforeseen reason. Didnt think it would be because of a pandemic though. Again the benefit of the LS for my situation, it makes a nice daily driver. It's also very reliable and easy to work on, I think its easier to repair than the 2f honestly. So with that in mind, I wouldn't build a truck with a singular trip in mind. I would keep in mind its other uses as well. Just remember you have to live with whatever engine you pick every day too.

The rebuild of my 2F was one of the reasons why I started to fade away from due to what you said,it’s lack of power. I have heard of the LS swap and it’s reliability and easy to work on,I will definitely keep that in mind. I will be driving whatever I get it but it won’t always be my daily,I’m mostly in my work truck traveling to and from work 40 hours a week so it most likely be a weekend ride when it will be driven. Sorry to hear about South America trip being put on the back burner,yeah this pandemic pretty much put a hold on a lot of people’s dreams/travels etc...hey hopefully it doesn’t alter mine when the time comes but that’s just it,time will tell?....Thanks again for all your input is greatly appreciated👍
 
I know this is a diesel ask thread, but since it’s already been thrown out there.... The Other nice thing about the LS is the fact that you can walk into any auto parts store or junkyard in America and get pretty much any part you’ll ever need. Not to mention everyone and their uncle knows how to work on them.

Might suck to have to deal with international shipping while on a cross country trip
 
Back
Top Bottom