Question about 1992 GMC Sierra C3500

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Stock horsepower - 1984 GMC C3500

What is the stock horsepower rating for a 1984 GMC C3500 with a 350 4BBL Carb?

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I own a shop, and build a lot of these engines. I have a race car & truck in which I built, so horsepower is something I know a little about. Most of these engines are rated around 190 - 200 horses, but when put on a dyno can be as much as 225, or as little as 175 or 180. Since its a truck engine it has more torque than an engine that was put in a car, and it also should be a four bolt main engine. The good thing about this engine is; One can get a lot more out of these with a little work. Matter of fact, its not that hard, or expensive to see as much as 400 horses from that engine, when rebuilt with some high performance parts. One can add just a few things such as headers, good intake, dual exhaust, flowmaster mufflers, and a better igniton system, and hit 300 - 325 pretty easily. Glad to help out, Good Luck!!!

Posted on May 18, 2008


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