With the layout of the valves in the head, it would be impossible to get valve/piston contact. The only valves that get remotely close to the piston also overhangs the block. It would hit the top of the block before it could reach the piston.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
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