Saturday, December 21, 2013

YZ450F Head

Flathead Rob and I dropped by to pick up some parts from the machinist that has been most of the machine work for his '48 Chief

Seymour Had the head from a YZ450F sitting on his bench. I'd never seen one apart before. I can't even imagine a head that has more combustion chamber real estate devoted to breathing. I was also shocked to see just how tiny and spindly the titanium valves they run are. Crazy when you consider the high redline and power generation of a YZ450F . I was pretty blown away by it.

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