{"product_id":"hydraulic-tappet-big-twin-2","title":"Hydraulic Tappet - Big Twin","description":"These tappets will run in cast iron or aluminum tappet blocks. Recommend fitting the tappets to the blocks with a clearance of .0007\" to .0012\". Produced from billet bearing steel. A true center-line for roller life and exact cam timing. State of the art pushrod seat, machined with the same segmented parabolic cup as the JIMS® roller rockers. Hand fit hydraulic unit to a running fit of .0002\", with ultra precision air gauging system.","brand":"Jims USA","offers":[{"title":"Default Title","offer_id":44588324814893,"sku":"FHRD_2461-1","price":178.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0608\/4057\/5021\/files\/DS194275_0.png?v=1770378372","url":"https:\/\/shopronayers.com\/products\/hydraulic-tappet-big-twin-2","provider":"Ron Ayers Motorsports","version":"1.0","type":"link"}