{"product_id":"lsx454-crate-engine","title":"LSX454 Crate Engine","description":"The Chevrolet Performance LSX454 Crate Engine (19417357) is engineered for serious performance enthusiasts, offering big-block power within a small-block size, leveraging advanced LSX technology. It boasts an all-forged, super-tough rotating assembly and is topped with LSX-style, 6-bolt cylinder heads, specifically LSX-LS7 port aluminum heads.\n\nThis engine family is LS Gen 4, with a displacement of 454 cubic inches (7.4L). The LSX454 is rated at 627 horsepower at 6300 RPM and 586 lb-ft of torque at 5100 RPM. Its construction includes an LSX cast-iron block with 6-bolt, cross-bolted main caps and a 4340 forged steel crankshaft with an 8-bolt flange. The cylinder heads feature 2.20-inch intake valves and 1.61-inch exhaust valves with an LS7 rectangular port intake pattern.\n\nImportant considerations for installation and use include that the Chevrolet Performance LSX454 long block crate engines do not include an oil pan. Additionally, the valve covers do not have provisions for mounting ignition coil brackets, requiring aftermarket or custom relocation brackets. The engine also features an 8-bolt crankshaft flange that may necessitate an adapter for certain transmissions. An intake manifold is not included; compatible options include the discontinued GM LSX-LS7 single plane carbureted intake manifold (P\/N 19244033), or aftermarket options like the Holley Hi-Ram (105mm LS7 Hi-Ram) or MSD Atomic LS7 Intake (103mm), provided clearance allows.","brand":"Chevrolet Performance","offers":[{"title":"Default Title","offer_id":52662823223608,"sku":"19417357","price":16836.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/687500396.jpg?v=1784321459","url":"https:\/\/store.motormia.co\/products\/lsx454-crate-engine","provider":"MOTORMIA","version":"1.0","type":"link"}