Isuzu Trooper Owners Club UK™ Forum Index,, I have a 1990 isuzu trooper LS. It will be fun and bond him to you and the vehicle. If you're talking mud truck, then it really doesn't matter what shell you start with, since it's basically a drivetrain stuck on a frame with a body tacked on. You don't have to use a 2.8. Off by an inch or so from what I remember. What engine swap would provide the most HP while also being a reliable engine and still a 5 speed manual. FYI, if using a Camaro/Firebird 3.4 it's easiest just to snip the cam sensor & crank sensor wires and leave them to plug the holes. 1990 Isuzu Bighorn LWB Mk.I 2.8TD Lotus Edition. With that said I am looking for more HP. I have a small block chevy 383 stroker in my 2nd gen Trooper.. The diesel doesn't need a fuel pump in the tank. The subject I did this swap on was �K9Troopins� 1991 Canadian built 2.8/mua5 Trooper. It is in great shape with only 100K miles on it. I haven't touched it in a few months since I don't have a heated garage but only have some of the wiring to sort out. Re: The official Trooper 3.4 swap thread. I doing an sas on a 87 isuzu trooper with a dana 44 and a 12 bolt . Now 4wd, 5 speed, diesel. I know I want to get rid of the 2.6 but a 2.8 just isnt enough for me. I have a 99 trooper that I was initially going to find a replacement 6cyl to replace the problematic, oil burning 3.5. wanted the v6 for the decent feul milage, as this was my work truck/tool hauler. I have a 1990 isuzu trooper LS. I would also like to keep it fuel injected. The 3.1 or 3.4 has to come from a rear wheel drive car. mpm55 Posts: 2. I have read that it isn't to difficult to drop in a 3.4 liter gm motor. Probably cheaper and easier then an engine swap. I have a lot of info on it as well. The TBI and DOHC MPFI are totally different. I can't say whether a 3.2 or 3.5 will fit in the engine bay of the 1988 Trooper. I see a lot more of the "big horn" diesels with the innercooler readily available. The head is cracked and 2 of the valves need replaced. My 3.4L is still kicking! Thanks for posting the P/N's for those Ed. While I had it out I completely cleaned it and sealed it. I use my trooper as a daily driver, and a trail rig whenever i have a chance. the hard part of my swap was trying to keep everything stock-looking and functional, like heat, AC, lights, shift console, etc. If they want a larger engine in a first gen Trooper, they just buy a truck with the 2.8L not a 2.6L. The 2.6L is an Isuzu motor. I want to put in a 3.2 V6 in it or higher, i know this involves alot of remounting and engine rummeging but Im not sure how much. I am wanting to change my 4cyl to a 4.3 v6, anyone know where we should start? I own a 1988 Isuzu Trooper II. I have been looking into an engine swap to a bigger v6 mainly for more power and torque to get through more stuff off road. Jerry cam, with headers and a new 2in exhaust. Like I said in the write up, in a pinch, you can use a 3/4" plug in place of the metric one but you have to flare it out a tad. Would the older 4jg2's be the ones without the innercooler? Or not necessarily. The 3.4 swap is the best Bang for the Buck$ when it comes to these rigs, Bar None! There is also the option of using a GM 3.4. Would the standard Tranny be able to mate with an engine higher than a 2.8? I have a 4jg2 that needs a clutch. Is there a computer issue and bellhousing match. If you use the Rodeo transmission, you will need to swap speedometer gears - both of them. I really like the vehicle but I would like to swap it out with a more dependable engine. Hoping to drop in a 3.1 v6. Nwkaustin you don't need to swap the engine to get more hp. If you've got the tools and the skills to fabricate mounts, crossmembers, suspensions, etc. Yeah, what Curt said! I know there's quite a few threads about engine swaps to diesel on this forum. Thanks Ed. This should definitely breathe some new life into your trooper... please post some pictures of your rig! Is there one I can buy for a gas engine that will match?