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Old 12-20-2016, 07:23 PM   #6
hot rod
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Join Date: Jan 2011
Posts: 527
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The 8.1 (496) was an entirely new engine in 2001 to replace the 7.4 (454). Nothing interchanges, it is an entirely different engine. But it is already a multi-port fi, just need to rob the rails and injectors from a junkyard pickup/suburban/mdt.
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