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Presuming you are not building some kind of show-car engine compartment that needs to be pristine to compete, I would just leave it be.
Pulling the unit is likely to cause even more dings and bent fins. And you will still have to worry about leaks when you connect it back in again. I would fill it up and see if anything drips out. Even if it leaks someday, it will be a slow leak.
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette
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