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 10 674 NEW PRODUCTS ADDED WEEKLY AT / MOTORCYCLESTOREHOUSE.COM piston note In any and all applications the technician must be able to judge components for their suitability in combination with the other engine components, prior to installation. It is of importance that a knowledgeable mechanic will install & make adjustments as required. The rider must follow standard break-in and riding procedures for overhauled engines. KB HYPEREUTECTIC PISTONS 944613 944750 79-84 1340CC SHOVEL (KB288) 8.0:1 CR. Piston weight 357gr. Piston pin weight 97gr. Head type: Dome 0.426" / Dome -30cc. Compression height 1.285". / Bore 3.4980". Stroke 4.250" (4-1/4"). Rod length 7.440" / Cyl. length 5.330". Note: Around 30% of stock 1340cc Shovel cylinders may present a problem in combination with the location of some of the oil return holes since KB pistons have a wider piston ring pack for better piston stability in the cylinder. In these cases the oil return hole must be relocated (lowered) to avoid excessive oil consumption. 944647 Std. 944648 .005" 944649 .010" 944650 .020" 944651 .030" 944652 .040" 944647 79-84 1340CC SHOVEL (KB297) 9.5:1 CR. Piston weight 388gr. Piston pin weight 97gr. Head type: Dome / Dome -47cc Compression height 1.285" / Bore 3.4980" Stroke 4.250" Rod length 7.440" / Cyl. length 5.330" Note: Around 30% of stock 1340cc Shovel cylinders may present a problem in combination with the location of some of the oil return holes since KB pistons have a wider piston ring pack for better piston stability in the cylinder. In these cases the oil return hole must be relocated (lowered) to avoid excessive oil consumption. 944653 Std. 944654 .005" 944655 .010" 944656 .020" 944657 .030" 944658 .040" 944653 86-22 883-1200CC XL CONVERSION (KB272) Note: 1200cc cylinders must be purchased for 04-22 883 XL models. Stock cylinders liners of 04-22 XL models are too thin to bore to 1200 size. (KB272) High compression Compatible with stock unmodified cylinder heads. 10:1 CR. Piston weight 335gr. Piston pin diameter .792" and weight 97gr. Head type: Dish / Dome +10cc. Compression height 1.210". Bore 3.498" / Stroke 3.812". Rod length 6.926" / Cyl. length 4.650". 944613 Std. 944614 .005" 944615 .010" 944616 .020" 944617 .030" 944618 .040" (KB410) Stock compression Compatible with stock unmodified cylinder heads. Pistons are flat top, .125" below deck height, to achieve a 9:1 CR with a compression height of 1.090". Piston weight 310gr. Piston pin diameter .792" and weight 97gr. Head type: Flat top / Dome +0.5cc. Compression height 1.090". Bore 3.498" / Stroke 3.812". Rod length 6.926" / Cyl. length 4.650". 944750 Std. 944751 .005" 944752 .010" 944753 .020" 944754 .030" 944755 .040" 41-78 1200CC KNUCKLE, PAN, SHOVEL (KB263) 8.5:1 CR. Piston weight 370gr. Piston pin weight 97gr. Head type: Dome 0.656" / Dome -57cc. Compression height 1.450". Bore 3.4375" / Stroke 3.969" (3-31/32"). Rod length 7.440" / Cyl. length 5.330". 944631 Std. 944632 .005" 944633 .010" 944634 .020" 944635 .030" 944636 .040" 944637 .050" 944638 .060" 944639 .070" 944640 .080" 944631 48-84 88" TO 98" SHOVEL (KB294) Used with 3-5/8" big bore cylinders with 5.330" (stock) to 5.530" (+.200") length. Use with 4-1/4" stock stroke (88"), 4-1/2" (93"), 4-5/8" (96") to 4-3/4" (98") stroker flywheels. 10.0:1 CR. Piston weight 385gr. Piston pin weight 97gr. Head type: Dome / Dome -57cc. Compression height 1.285" / Bore 3.625" (3-5/8"). Stroke 4.250" to 4.750" (4-1/4" to 4-3/4"). Rod length 7.440" / Cyl. length 5.330" (Std) to 5.530" (+.200"). Note: Stock 5.330" cylinders can be used with stock 4-1/4" stroke. Longer strokes require correct length longer cylinders or stroker plates to achieve the desired compression ratio. 944683 Std. 944685 .010" 944686 .020" 944687 .030" 944688 .040" 944683
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