Ariel OHV Single Service Notes


Specs & Details Galore

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This handy 6 page PDF article covers all you need to know about the vertical 250cc, 350cc and 500cc OHV motors from 1932 to 1959. Learn why the 4 valve head sounds real sexy but didn’t last too long. And learn why the factory’s desire for as much interchangeability as possible turns out to be a great benefit to you now all these years later. There’s a ton of spec in the article along with really nice technical drawings and exploded diagrams. All of which you can never get enough of when it comes to rebuilding old bikes.