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 SECTION 7 All part numbers in BLUE are new for the OldBook. 281 See FATBOOK For Late 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”. FOR 84-99 EVOLUTION BIG TWIN PART # HEAD DIA. STEM DIA. TULIP LENGTH NOTES OEM # INTAKE 0926-0126 1.900” 0.3100” 28° 4.420” Oversize (Racing Profile) - DS-198972 1.840” 0.3100” 23° 4.445” Std. 18082-83 EXHAUST 0926-2948 1.610” 0.3106” 25° 4.510” Oversize - 0926-0127 1.630” 0.3096” 40° 4.525” Oversize (Racing Profile) - DS-198974 1.615” 0.3096” 29° 4.525” Std. 18074-83B 0926-0331 1.565” 0.3095” 17° 4.505” Std. 18085-91 FOR 36-47 KNUCKLEHEAD PART # HEAD DIA. STEM DIA. TULIP LENGTH NOTES OEM # INTAKE 0926-1452 1.750” 0.3765” 23° 3.590” Std. 18071-36 EXHAUST 0926-1453 1.750” 0.3760” 29° 3.670” Std. 18081-36 FOR 48-65 PANHEAD PART # HEAD DIA. STEM DIA. TULIP LENGTH NOTES OEM # INTAKE 0926-0409 1.750” 0.3765” 23° 3.790” Std. 18071-48 EXHAUST DS-198970 1.750” 0.3760” 29° 3.820” Std. 18082-57 FOR 66-84 SHOVELHEAD PART # HEAD DIA. STEM DIA. TULIP LENGTH NOTES OEM # INTAKE DS-198971 1.950” 0.3765” 23° 3.885” Std. 18078-80 0926-0786 2.000” 0.3765” 23° 3.885” Oversize - EXHAUST DS-198970 1.750” 0.3760” 29° 3.810” Std. 18082-57 0926-0782 1.812” 0.3760” 29° 3.820” Oversize - FOR 57-85 XL PART # YEAR HEAD DIA. STEM DIA. TULIP LENGTH NOTES OEM # INTAKE DS-198975 70-85 1.935” 0.3090” 23° 3.615” Std. 18070-70 EXHAUST DS-198976 70-85 1.570” 0.3384” 29° 3.510” Std. 18080-58R DS-198976 57-69 1.570” 0.3384” 29° 3.510” Std. 18080-58R NITRIDED VALVES •One-piece stainless steel, stellite-tipped valves impregnated by a special nitrided process with 0.002” depth and 0.0002” surface buildup to improve wear properties and reduce friction •This process provides resistance to corrosion; wears superior to hard chromium and electrolysis nickel-plating •Lightweight with profiles that provide excellent flow characteristics •Compatible with leaded and unleaded fuels and can be run in cast iron- and bronze-type guides at close tolerances for maximum oil control and heat dissipation •Sold each •Made in the U.S.A. PART # DESCRIPTION FOR 66-84 BIG TWIN 0926-0128 1.950” intake valve; repl OEM #s 18075-80/81 and 18078-80/81 REPLACEMENT INTAKE VALVE •Intake valve has the stock 1.950” head dia. •Sold each •Made in the U.S.A. PART # DESCRIPTION 2008-2910 Intake valve 2.000” PART # DESCRIPTION 2008-2911 Exhaust valve 1.605” REPLACEMENT STAINLESS STEEL VALVES FOR S&S HEADS •Available for 89cc/91cc cylinder heads •89cc/91cc heads are found on S&S Evolution-style motors and use 2.000” intake valves and 1.605” exhaust valves •Made in the U.S.A. FOR 89CC/91CC HEADS PART # DESCRIPTION OD ID THICKNESS FOR 84-99 EVOLUTION BIG TWIN 0926-3357 O/S Intake 1.757” 1.371” 0.315” 0926-3367 Intake/exhaust 2.163” 1.750” 0.455” FOR 66-E84 SHOVELHEAD 0926-3366 Intake 2.135” 1.750” 0.400” 0926-3360 Exhaust 1.944” 1.575” 0.400” FOR 57-81 XL900 0926-3363 Intake/exhaust 2.068” 1.750” 0.315” PART # DESCRIPTION OD ID THICKNESS FOR 86-98 TWIN CAM XL (MACHINING REQUIRED) 0926-3354 Intake/exhaust 1.630” 1.180” 0.385” 0926-3358 Intake/exhaust 1.757” 1.410” 0.430” 0926-3359 Intake/exhaust 1.882” 1.530” 0.410” 0926-3361 Intake/exhaust 2.008” 1.610” 0.440” 0926-3362 Intake/exhaust 2.040” 1.700” 0.425” 0926-3364 Intake/exhaust 2.070” 1.610” 0.450” 0926-3365 Intake/exhaust 2.132” 1.800” 0.460” HIGH CHROME VALVE SEATS •Seats contain 18-22% Chromium for resistance to abrasion, corrosion and deformation •Nickel content of 1-2% for added corrosion resistance and toughness •Machined from solid bar stock and ground to exact tolerances •Machined as a continuous chip •Ideal alternative to powder metal valve seats •Sold each •Made in the U.S.A. 0926-3363 2008-2910 2008-2911
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