Short Case GY6 QMB139 Scooter Engine 50cc, 80cc or 100cc

  • $430.00
    Unit price per 
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You have the option of getting this engine in 50cc or 80cc or 100cc with the big bore racing engine.  This is the 4-Stroke complete engine, short crankcase.  For the 80cc big bore engine we install a 47mm cylinder and piston.  For the 100cc big bore engine we install the 50mm big bore cylinder and piston.