Dura-Bond CHP12T Coated Camshaft Bearing Chevy Big Block 427 454 502

Set of HP Coated Cam Bearings for Big Block Chevy 366 1967-98 396 1967-71 366ci 402 1970-72 427 1967-98 454 1970-99 502 HIGH PERFORMANCE CAM BEARING - The high performance all-round cam bearings offer more than double the fatigue strength of conventional bearings, withstand racing spring loads, and maintain the excellent surface characteristics of Babbitt. Specific Contributions of the Design and Processes: Micro-Babbitt:  A very thin layer of lining which reduces the microscopic deflections that occur to a bearing when loaded and thus increases fatigue life. Grain-Controlled Babbit:  By cooling the Babbitt quickly in the casting process, very fine grain structure is achieved. By leaving the structure as cast, tensile strength is almost doubled over the standard bearing. This hard and high strength condition provides the "toughness" needed for racing applications. Burnishing:  Cold working the surface of the Babbitt eliminates micro-fissures that can lead to fatigue fai