03 Gmc 3500 Cummins Conversion

[rockin-b-farms]

Hello, does anyone know of a cummins conversion for a 03 gmc 1ton duramax? Thanks.....chad

[More Power]

I haven't heard of one yet, but there very well could be. Cummins conversions are somewhat popular for the Ford trucks. I am curious though... why are you considering it?

Jim

[rockin-b-farms]

I want a mechanically injected engine, with fuel economy, durability and power...

[christophersond]

You've not mentioned the current condition of the 03 Duramax/GMC. I'd just trade in the GMC for a Dodge and be done with it, rather than ending up with some sort of a Rube Goldberg concoction. You may be sailing in uncharted waters with a Cummins/Duramax swap. If you've been really good, maybe Santa will bring you a new Dodge Ram for Christmas.

[More Power]

I want a mechanically injected engine, with fuel economy, durability and power...

While it isn't something a lot of states look at, the conversion you're proposing wouldn't fly with the federal EPA. i.e. It's illegal to install an older engine into a newer vehicle. It's also illegal to install a mechanical fuel injection system on a formerly electronic engine.

California will begin diesel emissions testing in 2010, with a requirement for testing every 2 years. A "test" includes both a visual (to check for proper equipment) and a snap-idle test for tailpipe emissions opacity. With the current EPA, expect something like this to possibly come to all 50 states.

Jim

[rockin-b-farms]

My o3 gmc duramax has 187,000 on it and it smokes, the dealer is not sure if its oil or injection system, i have no loss of oil on my dipstick anyway, no smoke while driving but smokes bad at idle. I assume it is the fuel, the smoke smells like diesel... I was just thinking of the swap as a possiblity.....chad

[Edahall]

Sounds like the infamous injector problems. If that's the problem, it'll be expensive but still a lot cheaper than installing a Cummins.

As mentioned, California has diesel emissions testing in the works for 2010 however, it'll be for 1998 and newer diesel equipped vehicles. For this reason and the $600+ per year truck license tax, I keep my older diesel Suburbans running.

[More Power]

My o3 gmc duramax has 187,000 on it and it smokes, the dealer is not sure if its oil or injection system, i have no loss of oil on my dipstick anyway, no smoke while driving but smokes bad at idle. I assume it is the fuel, the smoke smells like diesel... I was just thinking of the swap as a possiblity.....chad

Sounds like an injector issue....

Jim