The COMP Cams Endure-X Solid Roller Lifters are systematically designed to suit the high demands of aggressive lobe patterns, elevated rpm levels and demanding engine environments. These lifters feature a distinctive link bar assembly which merges the perks of a removable link bar and a captured link bar. They integrate the patented EDM Oil Injection Technology which makes certain that pressurized oil is consistently flowing to the bearing assembly.The precision sorted needle bearings distribute load evenly to considerably reduce the chances of premature wear and failure. The lifters are also designed with a wear resistant tool Steel axle which improves the Roller assembly lifespan and efficiency in high rpm Applications Guaranteeing unbeatable resilience and longevity, the COMP Cams Endure-X Solid Roller Lifters are appropriately heat-treated and machined to strict tolerances. Established in a variety of styles and sizes, COMP Cams certifies excellent fitment to your specific year and model.Specs:Endure-X Solid Roller LiftersAmerican Motors V8 290-401 1966-89Baseline Coverage for All Types Of Motorsports Using The AMC EngineSingle LifterFeatures:Needle Bearings are Precision Sorted by Size to Distribute Load Evenly, Which Prevents Premature Wear and FailureEDM Technology Guarantees the Bearing Assembly Receives a Constant Flow of Pressurized OilPatented Link Bar Assembly Combines the Benefits of a Removable Link Bar with the Safety of a Captured Link BarLink Bars are Precision-Crafted from Stainless Steel and Wear Coated for a Long Life