Thread: Vortec ?????
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Old 02-22-2003, 02:47 PM   #9
jmil1974
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Join Date: May 2002
Location: Friendswood, TX
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The 5.3L has 285HP. The 6.0 has between 300 and 345 depending on what it's out of. I think the 4.5 has 245 or 255. There's a bigger jump in torque than horsepower between the displacements.
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