{"product_id":"mb4530si-main-bearings-020","title":"MB4530SI Main Bearings -020","description":"Specifically designed for engines requiring a -020 inch crankshaft undersize and a STD+020in flange size, these main bearings ensure a precise fit and optimal performance. The SI-Series designation indicates their specific design and application for certain engine builds, including options for MB 445SI flange O\/S .020in.\n\nThese bearings are suitable for a wide range of vehicles, including Chevrolet Astro vans (various years and engine codes like LB1, LU2, L35, LU3), Checker Marathon models from 1980-1982, and other GM V6 applications. The \"Application Notes\" specify details such as the engine VIN code, engine family, and engine size for precise compatibility.","brand":"King Bearings","offers":[{"title":"Default Title","offer_id":52686466318648,"sku":"MB4530SI020","price":31.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/658279468.jpg?v=1784874121","url":"https:\/\/store.motormia.co\/products\/mb4530si-main-bearings-020","provider":"MOTORMIA","version":"1.0","type":"link"}