How big dimensionally are the 3.9 isb’s? Wondering how they would fit in the smaller old toyota pickups/4runners. When you sell them, do some come with a/c compressors and p/s stuff, or are most w/o? Gears are turning in my head
CK5
Register an account today to become a member! Once signed in, you'll be able to participate on this site by adding your own topics and posts, as well as connect with other members.
Cummins R2.8 in K5?
- Thread starter Mastiff
- Start date
How big dimensionally are the 3.9 isb’s? Wondering how they would fit in the smaller old toyota pickups/4runners. When you sell them, do some come with a/c compressors and p/s stuff, or are most w/o? Gears are turning in my head
I haven’t read all the Commenta in the thread but I will weigh in ,
The little b’s ( the 2.8 and 3.3’s ) are great little engines . Lighter and smoother then the 4bt by a long shot .
I have swapped 3 of the 3.3’s into different vehicles and I am currently gathering parts to swap a Common Rail 3.3 into my M43 Dodge ambulance .
It’s an easy swap , and you don’t have to just go through advance adapters for the conversion parts for the trans .
https://phxgrp.com/engine-auxiliary/transmission-adapters/
I used Phoenix Casting adapters for all the swaps , and used Diy4x builder bushings for the mounts.
For the power steering I used a hydraulic pump that bolts into the gear train below the IP , no belts to worry about!
I have done CJ8 scrambler , a Jeep TJ and the GMC CCKW 6x6 all replaced big six cylinder gas engines, and all where a huge improvement in power and mileage .
The little b’s ( the 2.8 and 3.3’s ) are great little engines . Lighter and smoother then the 4bt by a long shot .
I have swapped 3 of the 3.3’s into different vehicles and I am currently gathering parts to swap a Common Rail 3.3 into my M43 Dodge ambulance .
It’s an easy swap , and you don’t have to just go through advance adapters for the conversion parts for the trans .
https://phxgrp.com/engine-auxiliary/transmission-adapters/
I used Phoenix Casting adapters for all the swaps , and used Diy4x builder bushings for the mounts.
For the power steering I used a hydraulic pump that bolts into the gear train below the IP , no belts to worry about!
I have done CJ8 scrambler , a Jeep TJ and the GMC CCKW 6x6 all replaced big six cylinder gas engines, and all where a huge improvement in power and mileage .
red EOD
1/2 ton status
Larger than most people think, it's a medium duty engine that's built to run at max torque 100% of the time. Light duty applications (1 ton and lighter vehicles) are usually designed to run at max torque somewhere in the 30-60% range.
Mine is the Isuzu 4bd1t, their version of the Cummins 4bt (basically). Weight is similar to the 454 big blocks/6.2/6.5.
This thread isn't good for my pocket book... 
Probably too heavy for that. That are similar size to a 4bt, they come in a 1 ton Chevy chassis in the breadvans, they are rear gear drive engines but I can’t even remember what accessories are on the back. They don’t have A/C but come with everything you would need. You can have the whole rolling chassis if you want
While there are smarter people than me here, does anyone know if the 24 valve injectors are larger or would be an upgrade to the 16 valve 3.9s? I have a complete one minus turbo I was thinking about putting a larger turbo and injectors in. I have a good set of 24 valve injectors from an 05 dodge.
red EOD
1/2 ton status
Should be the same part #. The 4b's use many of the same parts as the 6b's.
red EOD
1/2 ton status
This thread isn't good for my pocket book...
Yea, mine's hurting a bit haha. It was actually cheaper for me to go with the Isuzu 4bd1t and all of the upgrades than for me to upgrade the 6.2 diesel it replaced.
The Isuzu is a bad ass little engine , really the only issue is that there isn’t much of an aftermarket for them .
