dragspecialties.com All part numbers in BLUE are new for 2026. SECTION 7 WINDSHIELDS & FAIRINGS AUDIO, COMMUNICATION & MOUNTS SADDLEBAGS & LUGGAGE SEATS & SISSY BARS FUEL/AIR SYSTEMS EXHAUST TRANSMISSION & DRIVELINE ENGINE GASKETS & SEALS LIGHTING ELECTRICAL HANDLEBARS, CONTROLS & MIRRORS CABLES TANKS & OIL FILTERS BRAKES DASHES & GAUGES FENDERS & LICENSE PLATE FRAMES HARDWARE, COVERS & GENERAL FRAMES & SUSPENSION FOOTRESTS & FLOORBOARDS WHEELS & AXLES 788 See OLDBOOK For Early Model Applications DISCLAIMER: *EMIS (EMISSIONS CATEGORIZATION CODE). SEE PAGES 5-7 FOR CATEGORY CODES, IMPORTANT EPA/CARB EMISSION DEFINITIONS AND REGULATORY COMPLIANCE AND NOTICE REGARDING NOISE REGULATIONS. PRODUCTS NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION CONTROLLED MOTOR VEHICLES IF NOT CATEGORIZED AS “1” OR “4”. PISTON KIT PART # DESCRIPTION BORE SIZE PISTON SIZE OVERSIZE COMPRESSION RATIO STROKE CC DOME VOLUME FOR 17-22 M-EIGHT (107” MOTOR) 0910-6681 107” 3.937 3.934 STD 11.0:1 4.375 3.92 0910-6683 117” 4.125 4.122 0.188 11.0:1 4.375 -4.40 0910-6684 119” 4.155 4.152 0.218 11.0:1 4.375 -5.97 FOR 17-22 M-EIGHT (107”/114” MOTOR) 0910-6682 114” CVO 4.016 4.013 0.079 11.0:1 4.500 0.40 0910-6685 120” CVO 4.125 4.122 0.188 11.0:1 4.500 -7.10 PISTON KITS •Forged from aerospace-grade aluminum alloys and heat-treated for strength and durability using Wossner’s state-of-the-art heat treatment process •CNC machined using MAZAK® advanced technology maintaining high precision and accuracy through every machining step •Reduced product distortion and variability •Enhanced piston pin oiling slots, radial boss machining and annular grooves for improved wrist pin lubrication •Piston skirt profile and camming are specifically tailored to each application for reduced friction, smooth operation and reduced noise from rockover •Piston skirts are coated for reduced friction and improved break in performance •Select applications have coating treatments to protect from harsh tuning environments •Piston rings are made from premium alloy steel and feature treatments to improve ring seal and extend wear life •Kits include pistons, piston rings, piston pins and retaining clips
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