Talking about reliability...how reliable would say a b18c be if you rebuilt it with a full gasket kit,replaced valve seals and anything else that needs doing while it was opened up?

The reason I ask is,it was mentioned on here that b-series are getting on in age now and that it's worth looking at K-series now for the reliability factor.

Is there any truth to this or not?

Would 16-18k sounds right for a k swap into an EK?