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Discussion Starter · #1 ·
Lets say I got a 5.4L expedition block with non PI heads. so I rebuild it with a better rotating assembly and want to install a 4v heads on it.. is that possible ? would I come across any wiring problems or so ? I will be using a 2003-2004 PCM from a mustang.

would there be any milling or drilling ?

another question is Do they sell rotating assemblies for the 6.8L excursion engines ? any shops you know of ?

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