{"product_id":"cast-iron-cylinder-head-for-vortec-l31-engines","title":"Cast Iron Cylinder Head for Vortec L31 Engines","description":"The Chevrolet Performance 19436449 is an assembled cast iron cylinder head, patterned after the LT1 cylinder heads found in the 1992-96 Corvette. Originally used on the 1996 fuel-injected L31 pickup truck engines, these Vortec heads are known for their excellent out-of-the-box flow, producing broad torque and significant power.\n\nThis cylinder head is equipped with 1.940\" intake valves and 1.500\" exhaust valves, housed within a 64cc combustion chamber. The intake ports measure 170cc. The included stock single valve springs are suitable for valve lifts up to 0.450\". The head utilizes a 14mm spark plug with a 0.708\" reach (straight design), and the NGK TR55GP is the suggested plug.\n\nThese Vortec cylinder heads are compatible with all small-block Chevrolet engines produced from 1955 to the present, with the exclusion of LT1\/LT4 reverse coolant flow engines and current LS1 style engines.","brand":"Chevrolet Performance","offers":[{"title":"Default Title","offer_id":52688586965304,"sku":"19436449","price":737.96,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/687902182.jpg?v=1784891458","url":"https:\/\/store.motormia.co\/products\/cast-iron-cylinder-head-for-vortec-l31-engines","provider":"MOTORMIA","version":"1.0","type":"link"}