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Engine swap from Gas to Diesel

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Engine swap from Gas to Diesel

rg31 rg31
New User | Posts: 1 | Joined: 03/12
Posted: 03/15/12
07:45 PM

I have a 1993 GMC Subruban K1500 4x4 its current engine is a 5.7L 350 gas engine its okay but a would like to put in a I6 71 Series 7.0L Detroit two stroke diesel and the problem i'm having is will that engine evn fit cause my truck can easily fit a 454 cu in. engine in it and the 7.0L is around 428 cu in. if i remember so it should fit right?? Confused  

MarineOne MarineOne
Addict | Posts: 2070 | Joined: 10/08
Posted: 03/16/12
12:56 PM

It would be a tight fit but when you factor in the engine weight, roughly 2200 pounds, you'll need to seriously beef up the front end to carry that weight.  I'm not even sure a half ton pickup would be able to handle it.

If you're seriously considering a swap, I would suggest a Cummins 4BT for this because you'll get a good mix of fuel economy and pulling power.


2006 Dodge Ram 2500 QC 5.9L - Smarty CR S-06 on SW #5

2008 Dodge Ram 3500 QC 6.7L - H&S MiniMaxx on DPF tune for towing
Titan Fuel Tank
Aero Muffler 4040XL
Nathan AirChime K3LA

HolsetVGT HolsetVGT
New User | Posts: 1 | Joined: 03/12
Posted: 03/17/12
09:04 AM

Just remember that displacement has little to do with engine dimensions when you're comparing a big block V-8 to an I-6. You will probably at least have to extend the firewall into the cabin a tad to make it fit.

Good luck with the swap and keep us posted with your progress!  

dieseltrucks dieseltrucks
New User | Posts: 3 | Joined: 04/12
Posted: 04/24/12
10:16 AM

Sorry dear. can you please explain that in details? I cannot understand that.


jonathansmith jonathansmith
New User | Posts: 10 | Joined: 02/13
Posted: 03/20/13
12:00 AM

Well, it would definitely be a tight fit. I think you should look for another cummins for better performance.
New Generator Berlin