Review on Dura Bond CH 12 Camshaft Bearing Chevy by James Yarbrough

Dura-Bond camshaft bearings are the best camshaft bearings and are the closest match to camshaft bearings that you can buy. The fact that they are full round bearings makes them superior to older models that were rolled and bolted. It is recommended that a small chamfer be made on the forward facing inner edge prior to installation to aid in camshaft installation. . It doesn't have to be a lot, just break the edge a little. Also, they work great right out of the box as long as you have the installation tool in good working order.