{"product_id":"ford-racing-302-351w-z-head-aluminum-assembled-63cc","title":"Ford Racing 302\/351W Z-Head Aluminum - Assembled 63CC","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.\u003cbr\u003e\u003ca href=\"https:\/\/d32vzsop7y1h3k.cloudfront.net\/261be214837723b5c2d12b0745deda89.PDF\"\u003eInstallation Instructions\u003c\/a\u003e\u003cbr\u003e","brand":"Ford Racing","offers":[{"title":"Default Title","offer_id":44229285216480,"sku":"FRPM-6049-Z304DA","price":1825.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0610\/0654\/5120\/products\/ecdbcd7f2a0673cae2e39e5c497f7267.jpg?v=1696717106","url":"https:\/\/797offroad.com\/products\/ford-racing-302-351w-z-head-aluminum-assembled-63cc","provider":"797 Offroad","version":"1.0","type":"link"}