The Testing Block is a 1920 American silent Western film directed by Lambert Hillyer and starring William S. Hart, Eva Novak, J. Gordon Russell, Florence Carpenter, Richard Headrick, and Ira McFadden.

After the wedding he becomes the model husband and soon Sonny (Headrick) is born who is the apple of his father's eye.

The gang leader directs Rosita through her cards to tell Sierra Bill that his wife is longing to leave him.

The Testing Block has survived in complete form and a print is held by the Library of Congress.

[4] Afterward the Capitola History Museum uploaded the film online, preceded by an introduction.