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Old June 20th, 2019, 08:08 PM
farmdreamer farmdreamer is offline
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Join Date: May 2019
Location: Platteville, WI
Truck: 67 C20 Chevy
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Default 478 Diesel vs Gas?

It's a way long term project (behind many others), but I have a 67 c20 with a 250 inline 6 cylinder. But, I have always had an interest in the GMC v6 engines. Out of the blue, I came across someone selling a 478 gas out of a uni. The last line in his as said also have a diesel. Long story short, I ended up coming home with both a 478 gas and diesel, both out of unis. I always thought the toroflows were interesting as well, just never thought I'd find one reasonable.

The question is, which one would you put in the truck? I think it'll be roughly the same amount of work to make either work. The gas would be really fun just because they are so torquey. But the diesel would be great for fuel mileage (and it smells better).

There is a lot of great information on this site for both the engines and tips on the swap. I figured there would be some good opinions on this too.

Thanks!
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