{"product_id":"bare-1938-1939-el-knucklehead-cylinder-head-set","title":"Bare 1938-1939 EL Knucklehead Cylinder Head Set","description":"\u003cp\u003e1938-1939 EL bare Knucklehead cylinder head set features exact casting marks and details for 1938 61 inch Knucklehead models.\u003c\/p\u003e\n\u003cp\u003eFeatures a small intake port. The valve spring cover is not included. *NOTE: Accepts cup valve cover  primer caps and large 18mm air cooled spark plugs  all items available separately. *NOTE: Accepts large 1-3\/8 inch hex Doering #3 spark plug set. *NOTE: Material of valve seats features a better hardenability and heat resistance than 1.2713. Material is tough with high compressive strength and high tempering resistance. Hardness equals 370-415 HB. Tensile strength equals 1250-1400 N\/mn2. Condition is tempered.\u003c\/p\u003e\n\u003ch3\u003eProduct Details\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Motortechnic\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eV-Twin Part Number:\u003c\/strong\u003e 49-1349\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Engine\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Group:\u003c\/strong\u003e Cylinder Head\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Bare\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e GERMANY\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1938-1939 EL\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003ePlease verify fitment before ordering.\u003c\/em\u003e\u003c\/p\u003e","brand":"Motortechnic","offers":[{"title":"Default Title","offer_id":47498089529428,"sku":"49-1349","price":4789.07,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0700\/0122\/9908\/files\/49-1349a.jpg?v=1786567908","url":"https:\/\/skywaycyclesupply.com\/products\/bare-1938-1939-el-knucklehead-cylinder-head-set","provider":"Skyway Cycle Supply","version":"1.0","type":"link"}