These Dura-Bond micro-babbitt camshaft bearings are manufactured with a thin lining layer which reduces microscopic deflections under load to extend the fatigue life of the bearings.  Dura-Bond seamless bearings are known for their quality and durability.

Specifications:

1st Housing Bore: 2.3260
5th Housing Bore: 2.3280

Engines with Cylinder Bore: 4.0000