Difference between the 5.3's with and w/o flex-fuel

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09-09-2013, 07:28 AM

#51

Gregory

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Here's a HP Tuner's link that may assist you:
http://www.hptuners.com/forum/showth...061#post322061

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12-17-2020, 06:15 PM

#52

Darren Montford

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Are the short blocks on 04 5.3 and 2010 the same

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12-17-2020, 06:41 PM

#53

arthursc2

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Quote:

Originally Posted by Darren Montford

Are the short blocks on 04 5.3 and 2010 the same

absolutely NOT

different casting geometry, different oil flow, different valley cover, different cam sensor, different knock sensors, different piston geometry, different rod manufacturing process

basically: they different

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