Misc Body Parts / Mirrors. WISECO TRACKER PISTON KIT EVO FLAT BIG TWIN 1340 8.5:1 +. Forged piston crown with generous valve pockets for big valves. Precision fit rings for ultimate sealing.Force fed pin oiling for enhanced lubrication of the piston pin. ArmorGlide skirt coating for reduced friction, quieter operation and improved scuff resistance. For MORE GREAT DEALS on Vintage and Classic Cycle Parts! Your friends at Classic Cycle Parts appreciate your Business! This item is in the category "eBay Motors\Parts & Accessories\Motorcycle & Scooter Parts & Accessories\Engines & Engine Parts\Pistons, Rings & Piston Kits". The seller is "shopmotomentum" and is located in this country: US. This item can be shipped worldwide.