{"product_id":"keith-black-80-inch-flh-fx-piston-set-010-oversize-for-harley-davidson","title":"Keith Black 80 Inch FLH-FX Piston Set Oversize.010 For Harley Davidson","description":"\u003cdiv\u003e\n\u003ch1\u003eKeith Black KB297.010 80 Inch FLH-FX Piston Set Oversize.010 for Harley-Davidson\u003c\/h1\u003e\n\u003cp\u003eThe Keith Black 390 hypereutectic piston set uses a 3.5 inch bore and an 8.3:1 compression ratio, oversize.010, designed for FL and FX Harley-Davidson models from 1978 to 1984. The piston alloy is cast in a permanent steel mold and ships with a piston ring set.\u003c\/p\u003e\n\u003cp\u003eMade in Mexico, this piston kit is engineered for precision and durability in vintage engines, offering a proper fit for rebuilds and performance upgrades that require a.010 oversize bore. It is compatible with Harley Davidson FL and FX models listed in the product details.\u003c\/p\u003e\n\u003cp\u003eBreak-in is essential: run the engine at moderate speeds for at least 500 miles and avoid lugging in low gears to ensure the new pistons and rings seat correctly. For installation steps, refer to the official guide linked in the product details.\u003c\/p\u003e\n\u003cp\u003eComplementary items recommended for a smooth install include the 11-1364 piston ring set and tools such as a Ring-O-Matic ring compressor and connecting rod clamping tools. Keith Black focuses on high-quality engine components designed to meet OEM specifications and deliver reliable longevity in classic Harley-Davidson builds.\u003c\/p\u003eThe Keith Black 390 hypereutectic 3.5 inch bore piston set has a 8.3:1 compression ratio and is oversize.010. Piston set alloy is cast in a permanent steel mold and includes rings.\n\u003cp\u003eUpgrade your Harley Davidson engine with the Keith Black KB297.010 80 inch FLH-FX piston set, designed for precision and durability. Crafted in Mexico, these pistons are engineered to provide optimal performance and long-lasting reliability in vintage Harley Davidson models from 1978 to 1984. The set includes pistons optimized for.010 oversize bore, ensuring a proper fit for your rebuild or performance enhancement. Proper break-in is critical; run the engine at moderate speeds for at least 500 miles and avoid excessive running in lower gears to ensure the new pistons and rings seat correctly. For detailed installation instructions, refer to the official guide linked in the product details. This piston set is compatible with Harley Davidson FL and FX models from the late 1970s through early 1980s, providing a perfect fit for your restoration or upgrade project. Complement this set with recommended accessories such as the 11-1364 piston ring set or specialized tools like the Ring-O-Matic ring compressor and connecting rod clamping tools for a smooth installation process. Trust Keith Black for high-quality, performance-focused engine components that meet OEM specifications and provide exceptional longevity.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\u003cli\u003eCompatibility: Fits Harley Davidson FL and FX models from 1978 to 1984\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eMaterial: High-quality pistons designed for durability and performance\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eOversize:.010 inch for precise engine rebuilds and performance upgrades\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eCountry of Origin: Made in Mexico ensuring quality manufacturing standards\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eInstallation Guide: Includes instructions for proper break-in and installation\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eSuggested Items: Includes piston ring set for optimal sealing\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eAccessory Items: Ring compressor kit and connecting rod tools for easier installation\u003c\/li\u003e\u003c\/ul\u003e\n\u003cbr\u003e\nFitment:\u003cbr\u003e\nHarley Davidson FL 1978\u003cbr\u003e\nHarley Davidson FL 1979\u003cbr\u003e\nHarley Davidson FL 1980\u003cbr\u003e\nHarley Davidson FL 1981\u003cbr\u003e\nHarley Davidson FL 1982\u003cbr\u003e\nHarley Davidson FL 1983\u003cbr\u003e\nHarley Davidson FL 1984\u003cbr\u003e\nHarley Davidson FLT 1979\u003cbr\u003e\nHarley Davidson FLT 1980\u003cbr\u003e\nHarley Davidson FLT 1981\u003cbr\u003e\nHarley Davidson FLT 1982\u003cbr\u003e\nHarley Davidson FLT 1983\u003cbr\u003e\nHarley Davidson FX 1978\u003cbr\u003e\nHarley Davidson FX 1979\u003cbr\u003e\nHarley Davidson FX 1980\u003cbr\u003e\nHarley Davidson FX 1981\u003cbr\u003e\nHarley Davidson FX 1982\u003cbr\u003e\nHarley Davidson FX 1983\u003cbr\u003e\nHarley Davidson FX 1984\u003cbr\u003e\nHarley Davidson FXR 1982\u003cbr\u003e\nHarley Davidson FXR 1983\u003c\/div\u003e","brand":"Keith Black","offers":[{"title":"Default Title","offer_id":44653113376810,"sku":"11-2253","price":213.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0692\/2285\/8794\/files\/11-2253.jpg?v=1785885451","url":"https:\/\/atticusgoods.com\/products\/keith-black-80-inch-flh-fx-piston-set-010-oversize-for-harley-davidson","provider":"Atticus Goods","version":"1.0","type":"link"}