Golf club heads and methods to manufacture golf club heads

A golf club head comprising:

• a body portion having a rear portion, a toe portion, a heel portion, a top portion, a bottom portion, and a front portion including a face portion, the face portion comprising:
• a center portion projecting into the body portion from an inner side of the face portion;
• an outer wall portion projecting into the body portion from the inner side of the face portion, the outer wall portion at least partially surrounding the center portion;
• and
• a plurality of inner wall portions projecting into the body portion from the inner side of the face portion, the plurality of inner wall portions connecting the center portion to the outer wall portion, the plurality of inner wall portions comprising a first inner wall portion extending horizontally from the center portion toward the toe portion, a second inner wall portion extending vertically from the center portion toward the bottom portion, a third inner wall portion extending horizontally from the center portion toward the heel portion, and a fourth inner wall portion extending vertically from the center portion toward the top portion,
• wherein a thickness of an inner wall portion of the plurality of inner wall portions decreases in thickness from a first thickness at a first connection region between the inner wall portion and the center portion to a second thickness at a second connection region between the inner wall portion and the outer wall portion.

A driver-type golf club head comprising:

• a body portion having a rear portion, a toe portion, a heel portion, a top portion, a bottom portion, and a front portion including a face portion, the face portion comprising:
• a strike face;
• an inner side opposite the strike face;
• a center portion projecting into the body portion from the inner side of the face portion, the center portion having a first thickness;
• an outer wall portion projecting into the body portion from the inner side of the face portion, the outer wall portion at least partially surrounding the center portion, the outer wall portion having a second thickness less than the first thickness;
• and
• a plurality of inner wall portions projecting into the body portion from the inner side of the face portion, the plurality of inner wall portions connecting the center portion to the outer wall portion, the plurality of inner wall portions comprising a first inner wall portion extending horizontally from the center portion toward the toe portion, a second inner wall portion extending vertically from the center portion toward the bottom portion, a third inner wall portion extending horizontally from the center portion toward the heel portion, and a fourth inner wall portion extending vertically from the center portion toward the top portion,
• wherein a thickness of each inner wall portion of the plurality of inner wall portions decreases from the first thickness to the second thickness in a direction from the center portion to the outer wall portion,
• wherein the driver-type golf club head has a volume greater than or equal to 300 cubic centimeters.