{"product_id":"lt1-gen-ii-aluminum-cylinder-head","title":"LT1 Gen II Aluminum Cylinder Head","description":"The Chevrolet 12551561 is a Gen II LT1 aluminum cylinder head, specifically designed for 350 cubic inch engines. This particular casting is noted for its 1996 model year application, indicating its use in specific LT1 engine variants from that period.\n\nKey specifications for this aluminum head include a 2.00-inch intake valve and a 1.55-inch exhaust valve, contributing to improved airflow. It features a reverse flow cooling design, which aids in thermal management, and an angle plug configuration for optimal combustion chamber performance. These heads are generally considered a lighter-weight casting compared to their iron counterparts.\n\nDiscussions and identification guides often reference the 12551561 casting number in relation to LT1 engines found in vehicles like Camaros and Corvettes from the mid-1990s. While primarily associated with LT1 applications, some sources may list broader compatibility or potential for modification for other small-block Chevrolet engines.","brand":"Chevrolet","offers":[{"title":"Default Title","offer_id":52687344304440,"sku":"12551561","price":1250.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/660191516.webp?v=1784883008","url":"https:\/\/store.motormia.co\/products\/lt1-gen-ii-aluminum-cylinder-head","provider":"MOTORMIA","version":"1.0","type":"link"}