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Does anyone know what year Polaris came out with a twin 600 with the oil pump mechanism between the two carbs. And what model it was from?
Also would a 600 cylinder head cover fit on any 500 series engines?
Thanks.
 

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I believe you would be looking for the 2000 XC SP 600 twin engine, or newer. The previous "big block" 600 USA-built twin in 98 and 99? had the oil pump mounted to the side by the water pump which was all driven by a belt and pulleys.

The 2000 XC SP 600 is easily detected by having VES and i believe the engine block was based on the 440 race engine therefore calling it the "small block" 600. The water and oil pump are driven off a gear straight from the crankshaft which is what you're looking for. It also has more power than the previous engine.

"Also would a 600 cylinder head cover fit on any 500 series engines?"

If you're referring to the very top "colored" cover only, then i think you might be able to swap them ??? Not sure. The heads and jugs i would leave alone though.
 
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