Is this product compatible with my vehicle?Confirm exact fitment for your specific Chevy LS1, LS6, or LS3 engine before purchasing these performance main bearings.Can I install this myself?Professional installation is strongly recommended for these performance main bearings to ensure optimal engine reliability and power.KING Performance Main Bearings, engineered for the demanding performance of Chevy LS1, LS6, and LS3 engines, deliver a superior crankshaft support score of 8. Featuring the STDX size, these bearings provide optimal oil clearance. Trust KING Engine Bearings for enhanced engine reliability and increased power in your high-performance LS application.Key FeaturesChevy LS1/LS6/LS3 Performance Main Bearing SetSize STDXWhy Choose the KING Performance Main BearingsDelivers enhanced engine reliability for your high-performance LS engine.Achieves superior crankshaft support for aggressive driving conditions.Provides optimal oil clearance for reduced friction and increased power.Transforms your LS engine’s durability under extreme motorsport demands.Who Is This For?Street Performance 8/10Designed for demanding LS1 LS6 LS3 engine performance.Track / Autocross 8/10Engineered for demanding performance applications.Drag Racing 8/10Engineered for demanding performance applications.Racing Competition 8/10Engineered for demanding performance applications.Engine Performance 9/10Specifically designed for high-performance LS engines.Frequently Asked QuestionsWill the King Engine Bearings KING Performance Main Bearings fit my vehicle?Confirming vehicle fitment is crucial for optimal performance. These bearings are engineered for Chevy LS1, LS6, and LS3 engines, ensuring precise compatibility when confirmed with your specific vehicle. This ensures a perfect mechanical interface for your engine build.How difficult is the King Engine Bearings KING Performance Main Bearings installation?Professional installation is recommended for these performance main bearings. This ensures the specialized STDX size and precise tolerances are met by a qualified technician. Proper installation guarantees superior crankshaft support and engine reliability.What performance improvement does the KING Performance Main Bearings provide over stock?These main bearings deliver enhanced engine reliability and superior crankshaft support for demanding applications. Achieving a score of 9 for Engine Performance, they provide optimal oil clearance, translating to reduced friction and increased power. Expect a significant upgrade for performance enthusiasts.Is the King Engine Bearings KING Performance Main Bearings worth upgrading from OEM?Upgrading to KING Performance Main Bearings is highly recommended for performance enthusiasts. They provide optimal oil clearance, which significantly reduces friction and increases power output compared to OEM bearings. This upgrade transforms your LS engine’s durability under extreme motorsport demands.What is the best use case for the KING Performance Main Bearings?These KING Performance Main Bearings excel in performance-driven scenarios, achieving a usage score of 8 for Street Performance, Track/Autocross, Drag Racing, and Racing Competition. They are specifically designed for high-performance LS engines, offering enhanced reliability and superior crankshaft support.Additional ResourcesOfficial King Engine Bearings Product PageImportant Notices Proposition 65 Warning: This product can expose you to chemicals including lead and/or other substances known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.{“@graph”:[{“mpn”:”MB5013XPSTDX”,”sku”:”KINGMB5013XPSTDX”,”gtin”:”611500565861″,”name”:”KING Performance Main Bearings”,”@type”:”Product”,”brand”:{“url”:”https://www.kingbearings.com/”,”name”:”King Engine Bearings”,”@type”:”Brand”},”image”:”https://d32vzsop7y1h3k.cloudfront.net/2408950f-0021-4b28-8d25-226a90761ca6-800.jpg”,”offers”:{“@type”:”Offer”,”price”:”195.11″,”seller”:{“url”:”https://www.motorsportmayhem.com”,”name”:”Motorsport Mayhem”,”@type”:”Organization”},”availability”:”https://schema.org/InStock”,”itemCondition”:”https://schema.org/NewCondition”,”priceCurrency”:”USD”,”priceValidUntil”:”2027-05-30″},”category”:”Bearings”,”description”:”Delivers enhanced engine reliability for your high-performance LS engine. Achieves superior crankshaft support for aggressive driving conditions. Engineered for the demanding performance of Chevy LS1 LS6 LS3 engines.”,”isRelatedTo”:{“name”:”Bearings”,”@type”:”Thing”},”alternateName”:”King Engine Bearings Engine Reliability”,”additionalProperty”:[{“name”:”Feature”,”@type”:”PropertyValue”,”value”:”Chevy LS1/LS6/LS3 Performance Main Bearing Set”},{“name”:”Feature”,”@type”:”PropertyValue”,”value”:”Size STDX”},{“name”:”Street Performance Rating”,”@type”:”PropertyValue”,”value”:”8/10″},{“name”:”Track / Autocross Rating”,”@type”:”PropertyValue”,”value”:”8/10″},{“name”:”D