{"product_id":"mid-sleeve-kit-for-honda-k20-engines","title":"MID Sleeve Kit for Honda K20 Engines","description":"The Darton 400-190 MID™ Sleeve Kit is engineered to enhance the performance and durability of Honda K20 engines. This kit provides the strength of cast iron within an aluminum block, significantly improving block integral strength and cooling efficiency. The \"wet sleeve\" design facilitates \"replace-ability\" and features Darton's patented Modular Integrated Deck (MID) technology, which reinforces the upper deck area for increased stability, especially at higher bore sizes.\n\nConstructed from bulletproof ductile iron with a 130,000-psi tensile strength, these sleeves offer superior oil and compression control, leading to better cylinder sealing and reduced ring wear. Darton incorporates \"Swirl Coolant Technology™\" to manage and enhance water flow around the flange area, targeting heat dissipation where it's most critical. This technology, along with \"Register Fins™\", helps eliminate hot spots in the compression area, allowing for increased horsepower output and high boost potential suitable for both street and strip applications.\n\nTo combat corrosion and rust common in standard wet sleeve designs, the MID sleeves are treated with a phosphate coating. This microcrystalline structure provides optimal corrosion and rust resistance, also adding a protective barrier for the lower register o-rings to extend their lifespan. This coating resists abrasion from turbulent coolant flow, further contributing to the elimination of hot spots and enabling higher power output. The sleeves have a bore size of 3.375 inches, an outside diameter of 3.8 inches, a wall thickness of 0.213 inches, and an overall length of 5.2 inches, with a maximum application size of 86mm - 90mm.","brand":"Darton","offers":[{"title":"Default Title","offer_id":52687588262200,"sku":"400-190","price":729.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/663166435.webp?v=1784885340","url":"https:\/\/store.motormia.co\/products\/mid-sleeve-kit-for-honda-k20-engines","provider":"MOTORMIA","version":"1.0","type":"link"}