motor swap
10

Asked by gmc_guy4301 Jun 23, 2016 at 10:08 PM about the 1998 GMC Sierra 1500 K1500 SLE 4WD Extended Cab SB

Question type: Car Customization

I'm looking at replacing the vortec 350 in my truck with a 6.5 turbo diesel. I don't need hate on my motor of choice, It's perfect for what I'm doing. My question is do I need my computer replaced (or flashed) for it to run with my current setup or can I just swap the wiring harness?

8 Answers
159,085

Bob answered 8 years ago

Replacing a 350 gasoline engine with a diesel will require major modifications. Electronics, transmission, fuel system, exhaust and possibly suspension will all have to be modified or replaced. I would just look for another vehicle.

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42,415

Auto_Centric answered 8 years ago

Find a GMC with the 6.5 turbo diesel buy it as a parts vehicle then change over the engine and all systems to your '98, This is the easiest method.

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10

gmc_guy4301 answered 8 years ago

I have been building this truck from the ground up, I got the diesel out of a 94 silverado and had it rebuild and upgraded to work with the 98. Basically everything's been done but the electronics up on the motor. I have the new harness, only thing I don't have is the computer. I have the computer from the original 350, which leads me back to my question, can that be flashed or does it have to be replaced with one from a truck with a diesel?

1 people found this helpful.
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10

gmc_guy4301 answered 8 years ago

The reason why kelly is that this project is something I started with a close family member who has since passed away. This has a huge amount of sentimental value to me so the extra cost and work are well worth it to me.

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10

gmc_guy4301 answered 8 years ago

I've upgraded the 6.5 to the late 90s specs. Updated heads, sensors, fuel system, and accessories. It's no longer compatible with the older computer. I know I can buy a computer for a 98 6.5 with my setup but it would have to be flashed by the dealership. I'm just wondering if I can have the computer I have for the 350 reprogrammed (flashed) to run the 6.5

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GuruC8BM1 answered 5 years ago

La trasmisión de una Chevrolet van 1500 año 98 se puede utilizar en una del año 2008

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Your Answer:

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