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: SEE PAGE 5 FOR IMPORTANT INFORMATION REGARDING CERTAIN WARRANTY AND EMISSION CONTROL REGULATION COMPLIANCE AND NOISE REGULATION INFORMATION. FOR 84-99 EVOLUTION BIG TWIN PART # HEAD DIA. STEM DIA. TULIP LENGTH NOTES OEM # INTAKE 0926-0126 1.900” .3100” 28° 4.420” Oversize (Racing Profile) - DS-198972 1.840” .3100” 23° 4.445” Std. 18082-83 EXHAUST 0926-2948 1.610” .3106” 25° 4.510” Oversize - 0926-0127 1.630” .3096” 40° 4.525” Oversize (Racing Profile) - DS-198974 1.615” .3096” 29° 4.525” Std. 18074-83B 0926-0331 1.565” .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” .3765” 23° 3.590” Std. 18071-36 EXHAUST 0926-1453 1.750” .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” .3765” 23° 3.790” Std. 18071-48 EXHAUST DS-198970 1.750” .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” .3765” 23° 3.885” Std. 18078-80 0926-0786 2.000” .3765” 23° 3.885” Oversize - EXHAUST DS-198970 1.750” .3760” 29° 3.810” Std. 18082-57 0926-0782 1.812” .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” .3090” 23° 3.615” Std. 18070-70 EXHAUST DS-198976 70-85 1.570” .3384” 29° 3.510” Std. 18080-58R DS-198976 57-69 1.570” .3384” 29° 3.510” Std. 18080-58R NITRIDED VALVES • One-piece stainless steel, stellite-tipped valves impregnated by a special nitrided process with .002” depth and .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 FOR 89CC/91CC HEADS 2008-2910 Intake valve 2.000” PART # DESCRIPTION FOR 89CC/91CC HEADS (CONT) 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. PART # DESCRIPTION OD ID THICKNESS FOR 84-99 EVOLUTION BIG TWIN 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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