{"product_id":"6-0l-gen-iii-cast-iron-engine-block","title":"6.0L Gen III Cast-Iron Engine Block","description":"The GM 12733807 is a 6.0L Gen III cast-iron engine block, serving as a robust foundation for high-performance engine builds. It is designed as a direct replacement for production LQ4 and LQ9 engines, offering the durability and strength required for demanding applications.\n\nKey features include a production cast-iron construction for exceptional durability, a production oiling system for reliable lubrication of critical components, and secure 6-bolt iron main bearing caps to ensure superior crankshaft stability, which is crucial for high-horsepower builds. The block has a 4.000\" bore and a 9.240\" deck height, providing flexibility for various piston and rod combinations.\n\nThis engine block does not have provisions for Active Fuel Management, making it ideal for high-output performance engines. It is engineered to reliably support over 500 horsepower, positioning it as a go-to choice for enthusiasts aiming to maximize power output without compromising reliability. Whether constructing a street performance vehicle or a dedicated race machine, the GM 12733807 block offers a solid and dependable starting point.","brand":"GM \/","offers":[{"title":"Default Title","offer_id":52688572121400,"sku":"12733807","price":2499.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/687901796.jpg?v=1784891207","url":"https:\/\/store.motormia.co\/products\/6-0l-gen-iii-cast-iron-engine-block","provider":"MOTORMIA","version":"1.0","type":"link"}