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KYOS21BKEVO4STI Sirio Kanai EVO IV STI   Alternative Views:	List Price: $549.99 Our Price: $329.99 You Save $220.00! Quantity in Stock: 0 Availability: Usually Ships in 24 Hours Product Code: KYOS21BKEVO4STI Qty: Email me when Back-In-Stock

Description Technical Specs   Sirio engines are made from the finest alloys and composites in the industry and the back to back 1/8th On-Road IFMAR World Championships and the 2004-05 1/10 IFMAR World Championship speak volumes when it comes to performance. New for 2006 Sirio has introduced their STI line up of engines. STI engines have all the "extra" touches that a true "team" engine has and they are now available to the public. STI engines feature serialized crankshafts, cases and rods for better quality control. Each crankcase is hand selected and blue printed for the best tolerances. The sleeve is hand matched to the case to improve the flow through all the ports. The connecting rod features a surface treatment that ensures maximum strength. The crank shaft has an aerospace coating to improve durability and performance. Premium bearings are hand matched to the crank shaft and case tolerances. Add this all up and you have true factory team performance. Designed for the Truggy class, the S28RSTI is one of the hottest engines for Truggies going. The added displacement along with the STI modifications make this engine a monster! There is no more technically advanced truggy engine on the market.   Features Front bearing has a rubber seal to keep out dirt. Aerospace coating on the crank decreases wear and increases strength. ABC sleeve has extra work done outside the sleeve to increase flow through the intake ports

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