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Old 04-05-2009, 03:21 PM   #1
Parts and more parts
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Join Date: Nov 2003
Location: Lebo, Kansas (middle of nowhere
Posts: 6,829
What HP is really in the 91 Silverado 350/5.7 engine.

Does anyone really know what the early 90s 5.7 engines, with TBI systems had for horsepower ratings? I had the impression that these engines were low compression, low HP rated and this supports their longivity. The numbers that I have heard are around 160 HP from the new car lot. Yet, there are individuals that have psted the numbers as high as 210 hp from the dealers.

Does anyone know the real numbers.

I am looking to replace the 275,000 mile engine in my truck and I am looking at a setup from Pace Performance. This new setup has around 265 HP complete from the crate. This will have the Edelbrock multi-point fuel injection, to assist in the improvement

Last edited by piecesparts; 04-05-2009 at 03:21 PM.
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