Clevite SH-290S Engine Camshaft Bearing Set Amazon Product Link: http://amazon.com/dp/B000COTYZQ/?tag=... 100% machined surface design provides the tightest tolerances in the industry. Increased system design flexibility. Constructed of seamless steel tube with a thin layer of lead based Babbitt material. Seamless construction makes installation easy, eliminating breakage and bearing surface interruptions. Lead based Babbitt provides ideal properties for nearly all engine applications. Superior embed ability, conformability, and anti-seizure characteristics have proven to reduce engine failures Manufactured to meet or exceed OE specifications Clevite camshaft bearings are OE replacement parts that are finished to provide the recommended clearance right from the box. Designed to meet or exceed OE specification, materials will vary based upon the OE year, make and model. Top reviews from the United States Highly recommend on performance or stock rebuild on 6.0 ls engines Would recommend on lq4 6.0 ls engine. Matched factory oem tolerances and much better quality for performance builds. No fitment issues!