Has anyone ever................

JBurch said

To be honest, I tend to agree with you.......it's a mute point in 99.9% of the time, yet it is a point that is brought up on occasion, and delivered as critical information to people who know little or nothing about their cars, as they seek information, advice, about what should they do as they work on their car.

Thing is though, still don't have any real numbers...........

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Its mostly brought up in my opinion because it falls into the old wifes tells category. And another thing to consider, is that a "narrow" rear main bearing can be installed in the 360, reducing a SMALL amount of bearing surface area. Its in the engine bible. ALSO, where the 360 has larger main journals, it has a SHORTER and LIGHTER piston than the 340, so that probally nullifies ANY bearing friction difference anyway.