Inliners International Forums General Discussion Hi Performance Flow bench day for the 848 head

I enjoy following this thread and keep wondering at what point the 4 main bearings in this engine would become a detrimental factor, with optimized head flow and increasing rpm, especially with a 12-port head ?

I read a while ago, from racers of these engines, back in the day, how they kept replacing the bearings all the time on these early inline 6s, built for all out racing.