{"product_id":"keith-black-11-2223-80-inch-evolution-domed-piston-kit-005-for-harley-davidson-fxr","title":"Keith Black 11-2223 80 Inch Domed Evolution Piston Kit.005 Oversize Harley FXR","description":"\u003cdiv\u003e\n\u003ch1\u003eKeith Black 11-2223 80 Inch Domed Evolution Piston Kit.005 Oversize for Harley FXR\u003c\/h1\u003e\n\u003cp\u003eThe Keith Black 11-2223 80 Inch Domed Evolution Piston Kit is a.005 oversize set tailored for Harley-Davidson FXR Big Twin Evolution engines from 1984 to 1993. Each piston is cast from a hypereutectic alloy and produced in a permanent steel mold to ensure consistent quality and durable performance under demanding riding conditions.\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eBore compatibility: 3.498 inches with oversize pistons for a precise fit and sealed compression.\u003c\/li\u003e \u003cli\u003eCompression ratio: 10.5:1, delivering a balanced blend of power and efficiency for street and performance use.\u003c\/li\u003e \u003cli\u003eMaterial and construction: hypereutectic alloy designed for strength and reduced wear, with a low heat transfer profile to help keep skirts cooler during operation.\u003c\/li\u003e \u003cli\u003eRing and detonation considerations: higher ring placement aimed at improving detonation resistance and managing top-ring temperature for sustained performance.\u003c\/li\u003e \u003cli\u003eFitment and origin: designed for Harley-Davidson FXR models from 1984 to 1993 and suitable for 1984-up Evolution big twin engines; manufactured in Mexico.\u003c\/li\u003e \u003cli\u003eInstallation guidance: includes installation instructions with emphasis on proper break-in to maximize longevity; kit includes all necessary components for installation, with optional accessories available separately (Ring-O-Matic Ring Compressor Tool Kit SKU 16-0622 and Wrist Pin Ring Tool SKU 16-0075).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eProper break-in procedures are recommended: run at moderate speeds for at least 500 miles and avoid prolonged low-gear operation to maximize piston longevity and performance.\u003c\/p\u003eKeith Black dome piston set is.005 oversize with a 10.5:1 compression ratio for 1984-up Big Twin Evolution models.\n\u003cp\u003eThe Keith Black 11-2223 hypereutectic alloy piston kit is designed to enhance performance and durability for Harley Davidson FXR models from 1984 to 1993. Cast in a permanent steel mold, these pistons are lightweight yet strong, offering improved power output while promoting fuel efficiency. The.005 inch oversize pistons are specifically tailored for a 3.498-inch bore, ensuring a precise fit for optimal engine performance. With a compression ratio of 10.5:1, they deliver a balanced mix of power and efficiency. \u003cbr\u003e The low heat transfer properties of the alloy keep piston skirts cooler during operation, reducing expansion and potential wear. High compression ring placement further enhances engine power and economy by increasing top ring temperature and reducing detonation risks. Proper break-in procedures, including running at moderate speeds for at least 500 miles and avoiding excessive low gear operation, are recommended to maximize piston longevity and performance. \u003cbr\u003e Installation instructions are available at \u003ca href=\"http:\/\/www.vtwinmfg.com\/Instructions\/MS\/KB%20Conversion%20Piston%20Guide%20and%20Fitment.pdf\"\u003ethis link\u003c\/a\u003e. This kit includes all necessary components, and accessories such as the Ring-O-Matic Ring Compressor Tool Kit (SKU 16-0622) and Wrist Pin Ring Tool (SKU 16-0075) can be purchased separately for ease of installation. Manufactured in Mexico, this piston kit is built to high standards, ensuring long-lasting durability and reliable performance in your Harley FXR engine.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\u003cli\u003eHypereutectic alloy construction for strength and durability\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eCast in a permanent steel mold for consistent quality\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eOversized.005 inch pistons for precise fit in 3.498-inch bore\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eCompression ratio of 10.5:1 for balanced power and efficiency\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eLow heat transfer alloy keeps skirts cool, minimizing expansion\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eHigh ring placement reduces detonation and increases top ring temperature\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eSuitable for Harley Davidson FXR models from 1984 to 1993\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eIncludes installation instructions for proper break-in\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eManufactured in Mexico\u003c\/li\u003e\u003c\/ul\u003e\n\u003cbr\u003e\nFitment:\u003cbr\u003e\nHarley Davidson FLST 1986\u003cbr\u003e\nHarley Davidson FLST 1987\u003cbr\u003e\nHarley Davidson FLST 1988\u003cbr\u003e\nHarley Davidson FLST 1989\u003cbr\u003e\nHarley Davidson FLST 1990\u003cbr\u003e\nHarley Davidson FLST 1991\u003cbr\u003e\nHarley Davidson FLST 1992\u003cbr\u003e\nHarley Davidson FLST 1993\u003cbr\u003e\nHarley Davidson FLST 1994\u003cbr\u003e\nHarley Davidson FLST 1995\u003cbr\u003e\nHarley Davidson FLST 1996\u003cbr\u003e\nHarley Davidson FLST 1997\u003cbr\u003e\nHarley Davidson FLST 1998\u003cbr\u003e\nHarley Davidson FLT 1984\u003cbr\u003e\nHarley Davidson FLT 1985\u003cbr\u003e\nHarley Davidson FLT 1986\u003cbr\u003e\nHarley Davidson FLT 1987\u003cbr\u003e\nHarley Davidson FLT 1988\u003cbr\u003e\nHarley Davidson FLT 1989\u003cbr\u003e\nHarley Davidson FLT 1990\u003cbr\u003e\nHarley Davidson FLT 1991\u003cbr\u003e\nHarley Davidson FLT 1992\u003cbr\u003e\nHarley Davidson FLT 1993\u003cbr\u003e\nHarley Davidson FLT 1994\u003cbr\u003e\nHarley Davidson FLT 1995\u003cbr\u003e\nHarley Davidson FLT 1996\u003cbr\u003e\nHarley Davidson FLT 1997\u003cbr\u003e\nHarley Davidson FLT 1998\u003cbr\u003e\nHarley Davidson FXD 1991\u003cbr\u003e\nHarley Davidson FXD 1992\u003cbr\u003e\nHarley Davidson FXD 1993\u003cbr\u003e\nHarley Davidson FXD 1994\u003cbr\u003e\nHarley Davidson FXD 1995\u003cbr\u003e\nHarley Davidson FXD 1996\u003cbr\u003e\nHarley Davidson FXD 1997\u003cbr\u003e\nHarley Davidson FXD 1998\u003cbr\u003e\nHarley Davidson FXR 1984\u003cbr\u003e\nHarley Davidson FXR 1985\u003cbr\u003e\nHarley Davidson FXR 1986\u003cbr\u003e\nHarley Davidson FXR 1987\u003cbr\u003e\nHarley Davidson FXR 1988\u003cbr\u003e\nHarley Davidson FXR 1989\u003cbr\u003e\nHarley Davidson FXR 1990\u003cbr\u003e\nHarley Davidson FXR 1991\u003cbr\u003e\nHarley Davidson FXR 1992\u003cbr\u003e\nHarley Davidson FXR 1993\u003cbr\u003e\nHarley Davidson FXR 1994\u003cbr\u003e\nHarley Davidson FXST 1984\u003cbr\u003e\nHarley Davidson FXST 1985\u003cbr\u003e\nHarley Davidson FXST 1986\u003cbr\u003e\nHarley Davidson FXST 1987\u003cbr\u003e\nHarley Davidson FXST 1988\u003cbr\u003e\nHarley Davidson FXST 1989\u003cbr\u003e\nHarley Davidson FXST 1990\u003cbr\u003e\nHarley Davidson FXST 1991\u003cbr\u003e\nHarley Davidson FXST 1992\u003cbr\u003e\nHarley Davidson FXST 1993\u003cbr\u003e\nHarley Davidson FXST 1994\u003cbr\u003e\nHarley Davidson FXST 1995\u003cbr\u003e\nHarley Davidson FXST 1996\u003cbr\u003e\nHarley Davidson FXST 1997\u003cbr\u003e\nHarley Davidson FXST 1998\u003c\/div\u003e","brand":"Keith Black","offers":[{"title":"Default Title","offer_id":44653147914282,"sku":"11-2223","price":212.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0692\/2285\/8794\/files\/11-2223.jpg?v=1785887582","url":"https:\/\/atticusgoods.com\/products\/keith-black-11-2223-80-inch-evolution-domed-piston-kit-005-for-harley-davidson-fxr","provider":"Atticus Goods","version":"1.0","type":"link"}