{"product_id":"keith-black-272-005-3-5-inch-bore-hypereutectic-piston-kit-for-harley-davidson-xl-883cc-conversion","title":"Keith Black KB272.005 3.5in Bore Hypereutectic Piston Kit","description":"\u003cdiv\u003e\n\u003ch1\u003eKeith Black KB272.005 3.5in Bore Hypereutectic Piston Kit\u003c\/h1\u003e\n\u003cp\u003eKeith Black KB272.005 is a.005 oversize dish piston kit with a 9:1 compression ratio, designed for 1986–1995 Harley Davidson XL engines displacing 883cc. Crafted from alloy cast hypereutectic material, these pistons are lighter yet durable, with low heat transfer that helps keep piston skirts cooler, minimizing expansion and wear for longer service life. Use with a 3.812-inch stroke and a dish head configuration to optimize combustion.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eBore:\u003c\/strong\u003e 3.5 inches\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCompression:\u003c\/strong\u003e 9:1\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Alloy cast hypereutectic design\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eIncludes:\u003c\/strong\u003e Hastings moly ring set\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Harley Davidson XL models from 1986 to 1995 with 883cc\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eManufactured in:\u003c\/strong\u003e Mexico\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBreak-in:\u003c\/strong\u003e Run the engine at moderate speeds for at least 500 miles; follow the provided ring end gap instructions to prevent ring butting; second ring end gaps require no additional clearance\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eTools recommended:\u003c\/strong\u003e Ring-O-Matic ring compressor, connecting rod clamping tool, piston ring grinder\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eImportant note:\u003c\/strong\u003e 2009-UP XL 883 cylinders cannot be overbored to 1200cc; for those applications separate 1200cc cylinders are required\u003c\/li\u003e\n\u003c\/ul\u003eKeith Black dish piston set is.005 oversize with a 9.0:1 compression ratio for 1986-up XL Evolution models.\n\u003cp\u003eUpgrade your Harley Davidson XL engine with the Keith Black 272.005 hypereutectic piston kit, designed specifically for 1986-1995 models with 883cc displacement. Crafted from alloy cast in a permanent steel mold, these pistons offer a lightweight, durable solution that enhances engine performance. The 9:1 compression ratio optimizes power output, while the alloy's low heat transfer characteristics keep the piston skirts cool, minimizing expansion and wear for longer service life. This results in quieter operation, improved fuel efficiency, and increased horsepower.\u003cbr\u003eThe set includes a Hastings moly ring set, ensuring a proper seal and longevity. Use these pistons with a 3.812-inch stroke and a dish head configuration. Note that 2009-UP XL 883 cylinders cannot be overbored to 1200cc; for those applications, separate purchase of 1200cc cylinders is required. Proper break-in procedures are essential; run the engine at moderate speeds for at least 500 miles, avoiding excessive low gear acceleration to ensure the rings and pistons seat correctly. Follow the provided ring end gap instructions to prevent ring butting, with no additional clearance needed for the second ring end gaps.\u003cbr\u003eThis piston kit is ideal for enthusiasts seeking a reliable upgrade for Harley Davidson XL engines, combining innovative materials and precise engineering for optimal performance. The kit is manufactured in Mexico and is compatible with various accessory tools, including ring compressors, connecting rod clamps, and piston ring grinders, which are recommended for installation. Proper installation and break-in are critical to maximize the lifespan and performance gains of this piston set.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\u003cli\u003eMaterial: Alloy cast hypereutectic design for strength and durability\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eCompression Ratio: 9:1 for increased power output\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eIncludes: Hastings moly ring set for optimal sealing\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eCompatibility: Fits Harley Davidson XL models from 1986 to 1995 with 883cc engine\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eNote: Use with 3.812 inch stroke and dish head configuration\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eManufactured in Mexico for quality assurance\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eProper break-in required: run engine at moderate speeds for at least 500 miles\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eTools Needed: Ring-O-Matic ring compressor, connecting rod clamping tool, piston ring grinder\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eTech Note: Follow ring end gap instructions to prevent ring butting; second ring gaps do not require extra clearance\u003c\/li\u003e\u003c\/ul\u003e\n\u003cbr\u003e\nFitment:\u003cbr\u003e\nHarley Davidson XL 1986\u003cbr\u003e\nHarley Davidson XL 1987\u003cbr\u003e\nHarley Davidson XL 1988\u003cbr\u003e\nHarley Davidson XL 1989\u003cbr\u003e\nHarley Davidson XL 1990\u003cbr\u003e\nHarley Davidson XL 1991\u003cbr\u003e\nHarley Davidson XL 1992\u003cbr\u003e\nHarley Davidson XL 1993\u003cbr\u003e\nHarley Davidson XL 1994\u003cbr\u003e\nHarley Davidson XL 1995\u003cbr\u003e\nHarley Davidson XL 1996\u003cbr\u003e\nHarley Davidson XL 1997\u003cbr\u003e\nHarley Davidson XL 1998\u003cbr\u003e\nHarley Davidson XL 1999\u003cbr\u003e\nHarley Davidson XL 2000\u003cbr\u003e\nHarley Davidson XL 2001\u003cbr\u003e\nHarley Davidson XL 2002\u003cbr\u003e\nHarley Davidson XL 2003\u003cbr\u003e\nHarley Davidson XL 2004\u003cbr\u003e\nHarley Davidson XL 2005\u003cbr\u003e\nHarley Davidson XL 2006\u003cbr\u003e\nHarley Davidson XL 2007\u003cbr\u003e\nHarley Davidson XL 2008\u003cbr\u003e\nHarley Davidson XL 2009\u003cbr\u003e\nHarley Davidson XL 2010\u003cbr\u003e\nHarley Davidson XL 2011\u003cbr\u003e\nHarley Davidson XL 2012\u003cbr\u003e\nHarley Davidson XL 2013\u003cbr\u003e\nHarley Davidson XL 2014\u003cbr\u003e\nHarley Davidson XL 2015\u003cbr\u003e\nHarley Davidson XL 2016\u003cbr\u003e\nHarley Davidson XL 2017\u003cbr\u003e\nHarley Davidson XL 2018\u003cbr\u003e\nHarley Davidson XL 2019\u003cbr\u003e\nHarley Davidson XL 2020\u003cbr\u003e\nHarley Davidson XL 2021\u003cbr\u003e\nHarley Davidson XL 2022\u003cbr\u003e\nHarley Davidson XL 2023\u003cbr\u003e\nHarley Davidson XL 2024\u003cbr\u003e\nHarley Davidson XL 2025\u003cbr\u003e\nHarley Davidson XL 2026\u003c\/div\u003e","brand":"Keith Black","offers":[{"title":"Default Title","offer_id":44653138640938,"sku":"11-2229","price":213.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0692\/2285\/8794\/files\/11-2229.jpg?v=1785886953","url":"https:\/\/atticusgoods.com\/products\/keith-black-272-005-3-5-inch-bore-hypereutectic-piston-kit-for-harley-davidson-xl-883cc-conversion","provider":"Atticus Goods","version":"1.0","type":"link"}