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Guys, this is my first post and Ive been a reader only for long time. My engine is knocking on bottom end and Im looking for an economical replacement. The later model 6.4L long block is a lot cheaper from Mopar than the 11-14 6.4L. My question is are they the same? Sensor locations, crank to trans? A8 vs A5 mounting? Crank sensor tooth count? etc.

I have swapped several LS engines but don't have any experience in what interchanges with these motors. Any help from the experts would be appreciated.
 

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The difference is the PCM tuning and connections for some of the sensors. Other than that mechanically they are the same.
 

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2018 Scat Pack SHAKER in Plum Crazy- GONE :-(
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I think the accessory mounting is different, as in the change from hydraulic P/S pully driven pump to electric pump.
And the 2018+ are BGE blocks, right?
 
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