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HomeRC & PowerAircraftHelicopterEngines Plugs Mufflers Fuel › OS-50hyper-55HZ conversion
10-30-2011 06:56 AM  7 years agoPost 1
Rhyno

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Napier New Zealand

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Anyone swapped internals on this bad boy? Just curious if you are able to put the 55 piston and liner in the 50hyper? Or is the OD of the 55 barrel too large for the standard hyper engine? Anyone got some internal measurement of both barrels?

I'm what Willis was talking about

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