Engine swap (one-for-one)?
How difficult is it to do a one-for-one engine swap?
By that I mean take our a 5.7L HEMI and put in a
(modified) 5.7L HEMI. I want to build up a junk yard
engine and do an engine swap (replacement), but
keep the original as a back up. Will all of the
electronics work right off the bat? Or are things like
the ECU custom to that engine (security)?
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