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 All part numbers in BLUE are new for 2024. SECTION 7 566 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”. GRIND OPEN CLOSE DURATION @ .053” DURATION @ .020” VALVE LIFT LIFT TDC 21 SERIES Intake 10° 30° 220° 255° .498” .138” Exhaust 40° 08° 228° 264° .498” .120” 26 SERIES Intake 11° 35° 226° 262° .490” .129” Exhaust 41° 09° 220° 266° .490” .112” 37 SERIES Intake 18° 38° 236° 272° .510” .174” Exhaust 46° 14° 240° 276° .510” .140” TW48 SERIES Intake 13° 29° 222° 257° .548” .153” Exhaust 43° 15° 238° 273° .548” .163” 54 SERIES Intake 16° 42° 238° 273° .555” .165” Exhaust 43° 15° 238° 273° .555” .158” 55 SERIES Intake 22° 46° 248° 283° .550” .197” Exhaust 52° 20° 252° 292° .550” .181” 57 SERIES Intake 18° 38° 236° 270° .560” .184” Exhaust 46° 14° 240° 274° .560” .153” CAMS FOR TWIN CAM (CONT) GRIND OPEN CLOSE DURATION @ .053” DURATION @ .020” VALVE LIFT LIFT TDC STOCK CARBURETOR (A) Intake 02° 38° 216° 257° .473” .072” Exhaust 36° 04° 220° 260° .473” .110” STOCK FUEL-INJECTED (B) Intake 02° 34° 216° 257° .473” .087” Exhaust 36° 04° 220° 260° .473” .110” ANDREWS “37N” Intake 18° 38° 236° 272° .510” .174” Exhaust 46° 14° 240° 276° .510 .148” PART # DESCRIPTION EMIS* 0925-0143 “37N” grind cams 3 TWIN CAM CONVERSION CHAIN-DRIVEN CAMS •Allow you to upgrade your 99-06 Twin Cam (except 06 Dyna Glide) to the newer roller-style cam chains and replaces the spring tension cam chain adjusters with the later-style hydraulic adjusters for longer life •Cam grinds listed are designed to be used with stock lifters; they require the installation of a 07-17 cam plate, oil pump, cam sprockets and chains, and both hydraulic chain adjusters (these parts are not included and must be purchased separately) •A list of required components is supplied with each set of cams •Performance should be similar to earlier bikes with the same cam grinds •Made in the U.S.A. NOTE: 99-06 Twin Cam motors (except 06 Dyna Glide) cannot use the 07-17 cams, as the bearing journal on the earlier motors is .875” in diameter and the 07-17 cams are 1.000” in diameter. The “N” series of cams feature the .875” bearing journal, yet still accept the new-style cam support plate. NOTE: 99-01 model motors must use the Andrews rear cam sprocket Drag PART #0925-0147. 2002-2006 models must use the stock rear cam sprocket, OEM #25728-06. NOTE: Installer must check coil bind, valve-to-valve clearance and valve-to-piston clearance. FOR 99-06 TWIN CAM (EXCEPT 06 DYNA GLIDE) “37N” GRIND CAMS •Bolt-in cams for 88” or 95” motors •Smooth idle, broad torque band •Run best with low-restriction exhausts (2200-5800 rpm) •Can be used with stock valve springs and tappets
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