{"product_id":"keith-black-272-010-hypereutectic-3-5-inch-bore-piston-kit-for-harley-davidson-xl-883cc-conversion","title":"Keith Black KB272.010 Hypereutectic 3.5 Bore Piston Kit for XL.010 Oversize","description":"\u003cdiv\u003e\n\u003ch1\u003eKeith Black KB272.010 Hypereutectic 3.5 Bore Piston Kit for XL.010 Oversize\u003c\/h1\u003e\n\u003cp\u003eUpgrade your Harley-Davidson XL Evolution engine with the Keith Black KB272.010 piston kit, a.010 oversize solution that delivers a 9.0:1 compression ratio for 1986–1995 XL models. Designed for a 3.812-inch stroke and a dish head, this kit is built to boost power while maintaining reliable, long‑lasting operation.\u003c\/p\u003e\n\u003cp\u003eThe pistons are crafted from an alloy cast hypereutectic material, offering reduced weight and strength with low heat transfer. This combination helps keep piston skirts cooler, minimizes expansion under load, and supports durable performance over time.\u003c\/p\u003e\n\u003cp\u003eIncluded in the kit is a Hastings moly ring set, providing proper sealing and stable ring seating for consistent performance. It is compatible with Harley XL engines that use a 3.812-inch stroke and a dish-head configuration. It is not suitable for overboring to 1200cc in 2009–UP XL 883 cylinders, which require separate 1200cc cylinders for proper fitment.\u003c\/p\u003e\n\u003cp\u003eFor installation, plan to use the #11-1364 80-inch Shovelhead piston ring set in.010, along with common tools such as a ring compressor, connecting rod clamping tool, and piston ring grinder to ensure correct assembly and longevity. Break-in is recommended: run the engine at moderate speeds for at least 500 miles and avoid prolonged low-gear operation to promote proper seating of rings and pistons.\u003c\/p\u003e\n\u003cp\u003eManufactured in Mexico, this piston kit provides a high-performance upgrade for Harley-Davidson XL engines across the eligible model range, delivering reliable power and durability for years to come.\u003c\/p\u003eKeith Black dish piston set is.010 oversize with a 9.0:1 compression ratio for 1986-up XL Evolution models.\n\u003cp\u003eEnhance your Harley Davidson XL engine with the Keith Black 272.010 hypereutectic piston kit, designed for reliable performance and longevity. Crafted from alloy cast in a permanent steel mold, this piston kit offers a lightweight construction that increases power output while maintaining quiet operation and fuel efficiency. The low heat transfer characteristics of the alloy help keep the piston skirts cool, minimizing expansion and ensuring durability over time. This set includes a Hastings moly ring set, providing a complete solution for rebuilding or upgrading your engine. Compatible with engines using a 3.812-inch stroke and a dish head, it is ideal for use in 1986-1995 Harley Davidson XL models, excluding 2009-UP XL 883 cylinders which cannot be bored to 1200cc and require separate purchase of 1200cc cylinders for proper fitment. Proper break-in procedures are recommended, including running the engine at moderate speeds for at least 500 miles and avoiding excessive low gear operation to ensure optimal piston and ring seating. For installation, it is suggested to use the #11-1364 80-inch Shovelhead piston ring set.010, along with recommended accessory tools such as a ring compressor kit, connecting rod clamping tool, and piston ring grinder, all designed to facilitate correct assembly and longevity of the components. Manufactured in Mexico, this piston set provides a high-performance upgrade for your Harley Davidson XL engine, ensuring reliable operation and increased power for years to come.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\u003cli\u003eMaterial: Alloy cast hypereutectic for strength and reduced weight\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eDesign: Low heat transfer alloy keeps piston skirts cool\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 1986-1995 Harley Davidson XL models with a 3.812-inch stroke and dish head\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eNote: Not suitable for overboring to 1200cc in 2009-UP XL 883 cylinders; separate cylinders required\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eBreak-in: Run engine at moderate speeds for 500 miles, avoid excessive low gear operation\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eSuggested Use: Compatible with #11-1364 80-inch Shovelhead Piston Ring Set.010\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":44653136576554,"sku":"11-2230","price":213.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0692\/2285\/8794\/files\/11-2230.jpg?v=1785886805","url":"https:\/\/atticusgoods.com\/products\/keith-black-272-010-hypereutectic-3-5-inch-bore-piston-kit-for-harley-davidson-xl-883cc-conversion","provider":"Atticus Goods","version":"1.0","type":"link"}