why do you need to be honed with deck plates

why do you need to be honed with deck plates? i wont to rebuild my 340,there is nothing wrong with it as far as i know.i have never ran it but it has bean sitting for over 2 years.i planed on putting it in when in got it but shit happens like i had a mild heart attack and then thay find a spot on my liver and my lung.so i thought i would freshen it up.
Author: admin