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 All part numbers in BLUE are new for the OldBook. SECTION 7 406 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 41-84 BIG TWIN PART # SIZE S&S # FORGED “LOW COMPRESSION” PISTONS, FOR 74” STOCK MOTORS WITH 3.4375” BORE AND 3.9687” STROKE (8:1 C.R.) (WRIST PIN DECK HEIGHT 1.436”) 0910-1918 Std. 106-5495 FORGED “HIGH COMPRESSION” PISTONS, FOR 74” STOCK MOTORS WITH 3.4375” BORE AND 3.9687” STROKE (9:1 C.R.) (WRIST PIN DECK HEIGHT 1.436”) 0910-1927 Std. 106-5503 0910-1930 0.030” 106-5506 FORGED “LOW COMPRESSION” PISTONS, FOR 80” STOCK MOTORS WITH 3.500” BORE AND 4.250” STROKE (8:1 C.R.) (WRIST PIN DECK HEIGHT 1.270”) 0910-1923 Std. 106-5511 0910-1924 0.010’ 106-5512 0910-1925 0.020” 106-5513 0910-1926 0.030” 106-5514 PART # SIZE S&S # FORGED “HIGH COMPRESSION” PISTONS, FOR 80” STOCK MOTORS WITH 3.500” BORE AND 4.250” STROKE (8.75:1 C.R.) (WRIST PIN DECK HEIGHT 1.270”) 0910-1932 Std. 106-5519 0910-1933 0.010 106-5520 0910-1934 0.020 106-5521 0910-1935 0.030 106-5522 FORGED PISTONS 3.625” BORE, 88” ( 7.6:1 C.R.), 93” (9.3:1 C.R.), 93” HC (10.1:1 C.R.), 98” (9.7:1 C.R.), MOTORS AND SIDEWINDER KITS (WRIST PIN DECK HEIGHT 1.260”) 0910-1992 Std. 106-5535 0910-1993 0.010” 106-5536 0910-1994 0.020” 106-5537 0910-1995 0.030” 106-5538 PISTON KITS •Replacement pistons available for stock and big-bore applications •All piston kits come with two pistons, rings, wrist pins, and wrist pin keepers •Compression ratios listed are approximate and are calculated using the correct length cylinders as specified by S&S •Require the use of connecting rods with a rod length of 7.440” (standard length OEM #24281-74A connecting rods); use of earlier connecting rods with a rod length of 7.470” (OEM #24281-41A) will result in a slight increase in the compression ratio of about one-halfpoint, and may also result in clearance problems (check all piston to cylinder head clearances carefully when using the early style rods) •Made in the U.S.A. PART # DESCRIPTION 1340CC FOR 84-99 EVOLUTION BIG TWIN (8.5:1 RATIO, 3.498” BORE) DS-750739 Std. DS-750740 0.005” DS-750741 0.010” DS-750742 0.020” DS-750743 0.030” 1340CC HIGH COMPRESSION FOR 78-84 BIG TWIN (8:1 RATIO, 3.498” BORE) DS-750720 Std. DS-750721 0.010” DS-750722 0.020” DS-750723 0.030” DS-750724 0.040” PART # DESCRIPTION 1340CC LOW COMPRESSION FOR 78-84 BIG TWIN (7.2:1 RATIO, 3.498” BORE) DS-750730 Std. DS-750731 0.010” DS-750732 0.020” DS-750733 0.030” 1200CC HIGH COMPRESSION FOR 48-80 BIG TWIN (8.5:1 RATIO, 3.4375” BORE) DS-750700 Std. DS-750701 0.010” DS-750702 0.020” DS-750703 0.030” DS-750704 0.040” DS-750705 0.050” DS-750706 0.060” DS-750707 0.070” PART # DESCRIPTION 1200CC LOW COMPRESSION FOR 48-80 BIG TWIN (7.5:1 RATIO, 3.4375” BORE) DS-750711 0.010” DS-750712 0.020” DS-750713 0.030” DS-750714 0.040” 1000CC HIGH COMPRESSION FOR 72-85 XL (9:1 RATIO, 3.1875” BORE) DS-750750 Std. DS-750751 0.010” DS-750752 0.020” DS-750753 0.030” DS-750754 0.040” DS-750755 0.050” REPLACEMENT PISTONS •OEM quality cast aluminum alloy construction •Pistons come complete with wrist pins and keepers (sold in pairs) •Available in various compression ratios •Kits include two pistons, wrist pins and clips •Rings are not included (suggest using Hastings rings, sold separately) 0910-1918 0910-1992 DS-750750
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