07 5.3 Heads

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12-30-2006, 03:30 PM

#11

bluecajun5.3

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damn, anyone know the hp rating w/ the 243 castings

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12-30-2006, 03:37 PM

#12

RoosterMcCandles

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The 5.3 in the 2007 Yukon makes 320 hp and 340 tq so I would imagine that it would be the same for the truck...

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12-30-2006, 07:57 PM

#13

jrs04silver

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the 5.3L is rated at 315hp on the new body 2007s

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