{"product_id":"aluminum-knucklehead-bare-head-set","title":"HARLEY Aluminum Knucklehead Bare Head Set Fits 1941-1947 FL,   1936-1947 EL,","description":"Aluminum Knucklehead bare head set is casted of heat treated aluminum for 74 inch Knuckle motors  and is the large port type.  Cast aluminum heads includes steel valve seats and large port screw - in inserts for 74 inch intake manifold. *NOTE: Accepts original valve spring cups.      Uses 1-3\/8 inch large hex 18mm plugs. *NOTE: Accepts large 1-3\/8 inch hex Doering #3 spark plug set.   FITS HARLEY: 1941-1947 FL,   1936-1947 EL,   ","brand":"Motortechnic","offers":[{"title":"Default Title","offer_id":46838230450364,"sku":"10-1106","price":3720.88,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0655\/4366\/7900\/files\/10-1106a.jpg?v=1779174710","url":"https:\/\/paniccycles.com\/products\/aluminum-knucklehead-bare-head-set","provider":"Paniccycles","version":"1.0","type":"link"}