{"product_id":"performance-engine-main-bearings","title":"Performance Engine Main Bearings","description":"The ACL Race Series 5M1644H-1 main bearing set offers a premium solution for high-performance engine builds, combining ACL's robust Trimetal lining with Calico's renowned CT-1 coating. This coating acts as a dry film lubricant, reducing friction and wear while providing intermittent dry lubrication. The base bearing shells are constructed with a hardened steel backing and increased bearing crush for superior retention, and feature increased ovality to better handle rod distortion at high RPMs. This complete set is designed for all main caps and includes six bearings with oil grooves and four without, with specific placement for the #4 journal.","brand":"ACL","offers":[{"title":"Default Title","offer_id":52686756512056,"sku":"CAL-5M1644H-1","price":207.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/660671377.jpg?v=1784876372","url":"https:\/\/store.motormia.co\/products\/performance-engine-main-bearings","provider":"MOTORMIA","version":"1.0","type":"link"}