Originally posted by DemonSVT:
Interference by the name means that the valves and the pistons occupy the same space. It's just the timing that makes it so they do not hit.

So yes "technically" if the chains ever failed there would be a mess. (No "known/for certain" chain failures to date though!)

I would not worry about the chains.
If you are in the 150-200k range on the stock engine I might start thinking about them.



Hope to not be above 150K for quite some time. Thanks, Demon.