9 DRAGSPECIALTIES.COM DECEMBER 2025 THE DRAG SPECIALTIES DISCLAIMER: PRODUCTS WITH EMIS CODE 1 ARE EMISSION COMPLIANT IN ALL STATES, INCLUDING CALIFORNIA. PRODUCTS WITH EMIS CODES 2 ARE EMISSION COMPLIANT IN ALL STATES EXCEPT CALIFORNIA. PRODUCTS WITH EMIS CODE 3 ARE “COMPETITION USE” ONLY, AND NOT LEGAL IN ANY STATE FOR STREET USE ON ANY POLLUTION-CONTROLLED VEHICLES. PRODUCTS WITH EMIS CODE 4 HAVE NO U.S. TERRITORY RESTRICTIONS PART # DESCRIPTION EMIS* FOR 17-25 M-EIGHT OIL-COOLED ENGINES 0904-0163 Wrinkle black w/ non-highlighted cylinder fins, chain drive cam 3 0904-0164 Wrinkle black w/ highlighted cylinder fins, chain drive cam 3 FOR 17-25 M-EIGHT WATER-COOLED ENGINES 0904-0168 Black granite w/ highlighted cylinder fins, chain drive cam 3 0904-0169 Wrinkle black w/ highlighted cylinder fins, chain drive cam 3 0904-0161 Wrinkle black w/ highlighted cylinder fins, gear drive cam 3 132” POWER PACKAGES FOR M-EIGHT • Big-bore bolt-on kit increases your 114”/117” with 4.5” stroke M-Eight to 132” with no case machining required • Big bore 4.32” cylinders with 11:1 forged pistons • S&S oil pump/cam plate with a blue anodized finish • Passage plugs are removable for servicing • Independent scavenge sections for flywheel cavity and cam chest • Debris screen in both scavenge pickups • Magnet in cam chest to help prevent debris from entering the oil pump • Increased oil flow capacity on both the oil feed and scavenge side • Adjustable pressure relief valve can be adjusted with the unit installed in the engine • Quickee pushrods with chrome pushrod tubes • S&S premium tappets • S&S hard-anodized, black coated tappet cuffs are billet aluminum construction • Improved tappet stability in high-lift, high-rpm situations • S&S 550 cams designed for big bore applications (gear or chain drive cams available) • S&S valve springs; work with cams up to 0.605” lift • High-performance conical single-wire spring design • All necessary gaskets, bearings and hardware for bolt-on installation included • Original engine serial numbers are retained • Made in the U.S.A. NOTE: Not for 121” CVO models. 0904-0164 0904-0161
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