{"product_id":"valve-exhaust","title":"Valve - Exhaust","description":"Some Twin Cam heads using 7.0mm valves may crack in the port end of the valve guide boss. These valves have .005\" oversize stems to re-establish the correct valve stem to valve guide clearance if the head has cracked. Valve guides must be reamed\/honed to set correct clearance, the a valve job performed to ensure proper sealing. Oversize portion of the valve stem does not extend into the keeper groove area; OEM valve keepers can be used.","brand":"Kibblewhite Precision","offers":[{"title":"Default Title","offer_id":44570361233453,"sku":"FHRX_20-20776","price":31.01,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0608\/4057\/5021\/files\/09262719_0.png?v=1769615332","url":"https:\/\/shopronayers.com\/products\/valve-exhaust","provider":"Ron Ayers Motorsports","version":"1.0","type":"link"}