Speedo Seats & Luggage- racks Frame Chassis Suspension Forktubes Wheels Brake Fenders Gastanks Motorparts Gaskets Intake Transmission & Driveline Exhaust Electrical & Lights Handlebars, Cables & Mirrors Oil tanks Oil & Chemicals Fasteners Windshields Forward controls, Footpegs Miscellaneous MOTOR PARTS - TOP END 10 682 NEW PRODUCTS ADDED WEEKLY AT / MOTORCYCLESTOREHOUSE.COM S&S, 883-1200 XL CONVERSION PISTONS Used to convert a stock 883cc, or 1100cc XL Sportster, to 1200cc. Gives 1:9.5 CR with stock heads. Requires boring of stock cylinders to the stock 3.5" 1200 bore only (note). Other modifications are not required. Works with stock 883 cylinder heads and cylinders, stock cases do not require boring. Kit comes complete with forged pistons, rings, wrist pins and clips. Note: 1200cc cylinders must be purchased for 04-22 883 XL models. Stock cylinder liners of 04-22 XL models are too thin to bore to 1200 size. 86-22 XL883/1100 (note) 531791 Std 531792 .010" 531793 .020" S&S replacement rings S&S 3-1/2" bore chromoly replacement piston ring set. 916670 Std ring set 916672 .010" ring set 916673 .020" ring set 531791 S&S 36-84 std replacement S&S, 36-84 B.T. FORGED REPL. PISTONS Stock replacement pistons for stock 41-84 Knuckle, Pan and Shovelhead engines. These S&S forged pistons come in an advanced alloy and skirt profiles, resulting in a quiet engine and long life, previously only achievable with cast pistons. This is an excellent choice to overhaul your stock Knuckle, Pan or Shovel. Note: S&S piston fit recommendations: Close fit .0030" to .0035", loose fit .004" to .005". 41-78 1200cc Big Twin Used as stock replacement for 1200cc (74") Shovel, Pan and Knucklehead models. 3-7/16" bore with stock 3-31/32" stroke. Standard replacement was 8:1 (46cc dome), these come with a 9:1 (57cc dome) compression ratio for a bit more oomph. Pistons include wrist pins, wrist pin clips and piston rings. 9:1CR 531759 Std 531762 .030" 531763 .040" 79-84 1340cc Big Twin Used as stock replacement for 1340 (80") Shovelhead models, 3-1/2" bore with stock 4-1/4" stroke. Available with the standard 8:1 (41cc dome) or high 9:1 (53cc dome) compression ratio. Pistons include wrist pins, wrist pin clips and piston rings. Note: Standard 1340cc (3-1/2") cylinder size is +.060" for 1200cc (3-7/16") cylinders. 8:1 CR 9:1 CR 531764 531768 Std. 531765 531769 .010" 531766 531770 .020" 531767 531771 .030" 531764 S&S 36-84 Stroker S&S 883-1200 XL conversion S&S 36-84 Big Bore S&S, 36-84 B.T. FORGED 3-7/16" STROKER PISTONS Forged piston set. For 41-78 1200cc (74") Knuckle, Panhead, Shovel and 1340cc Shovel. Fits engines with stroker flywheels and stock 3-7/16" (1200cc) or 3-1/2" (1340cc) cylinders with stock 5.330" length. Compression will be approx 8.4:1 with 4-1/2" stroke, 9.4:1 with 4-5/8 stroke and 10.8 with 4-3/4" stroke. Piston dome volume 50cc. The advanced alloy and piston skirt profile for low noise and long engine life. Pistons include wrist pins, wrist pin clips and piston rings. Note: Standard 3-1/2" bore of the 1340 engine equals the +.060" Standard 3-7/16" bore of the 1200 engine. 84, 86 & 88" engines 4-1/2", 4-5/8 & 4-3/4" stroke standard bore. 531772 Std. (Std for 3-7/16" cyl.) 531773 .010" 531774 .020" 531775 .030" 531776 .040" 531777 .050" 531778 .060" (Std for 3-1/2" cyl.) 531779 .070" 531780 .080" 531781 .090" S&S, 36-84 B.T. FORGED 3-5/8" PISTONS Forged piston set for 36-84 Big Twin models. Fits all 3-5/8" big bore with 4-1/4" to 5" stroke flywheels, in combination with the appropriate cylinder length like mentioned below. Advanced alloy and piston skirt profile for low noise and long engine life. Piston dome volume 30cc, piston deck height 1.260". Pistons include wrist pins, wrist pin clips and piston rings. Note: For a higher compression ratio S&S advises shortening the cylinders. Shortening cyl. .060" will produce approx. 1 point increase in CR. Note: Other oversizes than mentioned are not available from S&S. Fits 88", 93", 93" HC, 96", 98", 103" engines Inch Stroke Flywheel CR Cyl. length 88" 4-1/4" 8-1/2" 8.5:1 5.330" 93" 4-1/2" 8-1/2" 8.5:1 5.405" 93" HC 4-1/2" 8-1/2" 9.1:1 5.363" 96" 4-5/8" 8-1/2" 9.1:1 5.440" 98" 4-3/4" 8-1/4" 8.9:1 5.530" 103" 5" 8-1/4" 9.7:1 5.630" 531782 Std. 531783 .010" 531784 .020" 531785 .030" 531786 .060" 531782 531772
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