{"product_id":"302-351w-z-head-aluminum-assembled-63cc-with-7mm-valve","title":"302\/351W \"Z-Head\" Aluminum-Assembled 63CC With 7MM Valve","description":"Cast from prime A356 T6 aluminum, these 'Z' heads from Ford Racing were designed using solid modeling technology. They feature high-flow ports and steel alloy intake and exhaust valve seats installed (they do require a competition valve job and bowl blending). The manganese-bronze valve guides are installed with a semi-finished I.D. and the combustion chambers are CNC-machined. Laser-cut guideplates are included, and they accept both tapered seat and gasket-style 14mm spark plugs.","brand":"Ford Performance Parts","offers":[{"title":"Default Title","offer_id":48137420112120,"sku":"BDXX_M-6049-Z304DA7","price":1955.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/1538\/7640\/files\/M-6049-Z304DA7.jpg?v=1774505077","url":"https:\/\/nadersautosupply.com\/products\/302-351w-z-head-aluminum-assembled-63cc-with-7mm-valve","provider":"Nader's Auto Supply","version":"1.0","type":"link"}