771cc XScream Engine Short Block
Product Description:
Our 85mm Big bore is where the real fun begins. We transform your OEM 61x cylinder from an ordinary 701cc into a 771cc arm yanker. Utilizing the stock crank means this is about as low maintenance as you can get. Great for surf and amateur class legal boats. This was the package of choice for team rider Micheal Ratti to compete with in the '06 & '07 full seasons.
(Requires Boyesen RAD Valve intake or Riva reed spacer)
Also available as top end kit.
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