Originally Posted by Koroush
My dad a mechanic for 40+ years (now retired... obviously) says that breaking in is important if you wish your car to last long.
Modern engines are quite different from 40 years ago. Or even 20. Remember reading the main reason for break-in back then was the honing on iron cylinder liners. Now even Nikasil coating is old technology
. Plus materials and tolerances are much better as well. Not saying he's wrong, but times have changed dramatically
. I still enjoy tinkering with the double-pumper and timing on the Cobra's BB, but still wish it was fuel injected with electronic controls. Take care.