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06-11-2018, 03:13 PM
A reader asks what he needs to swap a 4.0L head into a 4.2L engine block on his Jeep CJ-7.
More... (http://www.fourwheeler.com/how-to/tech-qa/1805-nuts-and-bolts-4-2l-mpi-swap/)
More... (http://www.fourwheeler.com/how-to/tech-qa/1805-nuts-and-bolts-4-2l-mpi-swap/)