{"product_id":"s-s-shovel-to-panhead-cyl-head-conversion-kit","title":"S\u0026S, Shovel to Panhead cyl. head conversion kit","description":"Standard 3-1\/2\" bore. Used to run a Shovel with Panhead style heads. Cylinder head conversion kit for 66-84 Shovelheads. This are Panhead look alike heads; as used by S\u0026amp;S on their P-series engines. These are actually S\u0026amp;S Shovelhead based heads with just a Panhead rocker cover so the whole set-up is basically identical as would be done with S\u0026amp;S Shovelhead heads. The valve train drive technique is based on the Evo Big Twin; so Evo hydraulic units; Evo billet tappet guides; Quickee pushrods with through the pushrod top end oiling; specialty P-Series rocker shafts; rocker cradle and S\u0026amp;S Shovel roller rocker arms are used. Will fit Shovelhead cylinders since the stock Shovel head bolt pattern and the stock Shovel style fire-ring is used. For intake stock Shovel O-ring style intake manifolds can be used. The exhaust mounting style is stock Shovelhead as well. Heads come complete with valves and a .590\" lift valve spring kit installed. Kit comes complete as shown.  Note: You may need to order separately one or more of the following parts:  1) 66-E78 O-ring style manifold.  2) 70-E78 stock engines require a L78-87 style pinion gear since an Evo B.T. cam must be used.  3) 84-99 Evo B.T. style camshaft.  4) 66-69 stock engines require a special generator style cam with 84-99 style lobes.\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e 66-84 Shovel with stock bore cylinders (NU)\u003c\/p\u003e","brand":"S\u0026S","offers":[{"title":"Default Title","offer_id":54307917201735,"sku":"512757","price":4357.85,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0987\/7812\/0519\/files\/512757k.jpg?v=1784486200","url":"https:\/\/www.chopperessentials.com\/products\/s-s-shovel-to-panhead-cyl-head-conversion-kit","provider":"Chopper Essentials Co.","version":"1.0","type":"link"}