2024-2025 Drag Specialties OldBook

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 dragspecialties.com SECTION 7 All part numbers in BLUE are new for the OldBook. 393 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”. SPECIAL APPLICATION CRANKCASE •Cam chest is moved outward .250” to allow crankcases to handle large cylinder bore sizes •Relocated cam chest oil pickup increases gear case scavenging and virtually eliminates oil carry-over at sustained high rpm •Machined to accept the stock oil filter assembly used on 92-99 Big Twins •A ported breather passageway and a machined breather window allow the air/​oil mist to flow from the flywheel cavity to the cam chest of the engine with the least possible restriction •Crankcase venting can be achieved via two crankcase breathers, the cylinder heads, or both; S&S recommends using both crankcase breathers in engines larger than 95” •Clearanced for strokes as long as 5” •Machined for installation of a crank position sensor which allows the cases to be used in EFI applications and also allows easy installation of S&S IST Ignition and VFI Fuel Injection; a plug kit is included for applications that do not use a crank position sensor •Made in the U.S.A. SUPER STOCK GENERATOR ENGINE CASES •Cast from A356 T6 heat-treated aluminum alloy •Includes crankcase bolts, washers and nuts, cylinder mounting studs, timing hole plug, magnetic drain plug, assorted breather and oil line fittings, top end oil screen spring and plug, sprocket shaft Timken® bearing assembly, oil seal, pinion shaft main bearing race, cam needle bearing assembly, oil pump shaft bushings and installation instructions •Use Timken style sprocket shaft bearings and 1958 and later pinion bearings (will not accept 1957 and earlier flywheels) •Bearing races are all line honed and breather cavity is precision machined to optimize breather timing for maximum oil scavenging •Machined for 3.4375” cylinders and tapped 1/4”-20 for gear covers, oil pump, tappet guides, timer and timer advance •65 models use 65 alloy inner primary •Drilled for 5/16” generator mounting bolts PART # DESCRIPTION SUG. RETAIL 0920-0158 For 84-99 Evolution Big Twin (4” and over bore), S&S 4”, 4.125” V-Series engines $1,729.95 PART # DESCRIPTION SUG. RETAIL 31-0010 65-69 Big Twin generator case $2,109.95 0920-0124 48-64 Big Twin generator case 2,109.95 33-4226 Generator crankcase gear kit 769.95 PART # DESCRIPTION SUG. RETAIL 31-2037 Circuit breaker drive gear gear shaft; repl. OEM #25856-36 $49.95 31-2039 Idler gear shaft; repl. OEM # 25791-36 19.95 •63-65 models with outside oil lines must use oil port to the rear of the tappet block or oil port in gear cover and use custom oil lines •Generator crankcase gear kit (includes circuit breaker drive gear, idler gear, circuit breaker gear and shims) and shafts must be purchased separately •70-84 models are for a 35/8” bore and machined for 70-84 alloy primary •Made in the U.S.A. 33-4226 31-0010

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