{"product_id":"engine-circular-plug","title":"Engine Circular Plug","description":"Using new head bolts when performing a cylinder head installation is always a good idea however, on late-model engines that came from the factory with TTY (torque-to yield) head bolts, replacement is an absolute necessity. TTY bolts are designed to exert the maximum clamping force for a tight head gasket seal, however they permanently stretched and could fail if re-used.","brand":"FEL-PRO","offers":[{"title":"Default Title","offer_id":51405437927739,"sku":"BCWV_CP75018","price":14.63,"currency_code":"CAD","in_stock":false}],"url":"https:\/\/performancepartscanada.ca\/products\/engine-circular-plug","provider":"Performance Parts Canada","version":"1.0","type":"link"}