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Old 01-01-2013, 03:58 PM   #189
shank0668


 
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Drives: '14 LML/'06 LJ/'76 Trans Am
Join Date: Feb 2008
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Quote:
Originally Posted by KMPrenger View Post
This 5.3 will be an all new design, just like the 4.3 and 6.2 are all new. Expect a nice power bump and an increase in economy with the 5.3.
I don't think the upper 300 HP range is out of the question.
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