Golf club heads and methods to manufacture golf club heads

A golf club head comprising:

• a hollow body portion having a volume of less than or equal to 100 cubic centimeters, the hollow body portion comprising:
• an interior portion;
• an exterior portion;
• a first material having a first density;
• a toe portion with a toe portion edge, a heel portion with a heel portion edge, a front portion, a top portion with a top portion edge, a sole portion with a sole portion edge, and a back portion with a back wall portion, the back wall portion comprising at least one rib portion extending from a center portion of the back wall portion toward a perimeter portion of the back wall portion, the at least one rib portion comprising a rib portion height, a rib portion width, and a rib portion length;
• and
• a port in the center portion of the back wall portion, the port connecting the exterior portion to the interior portion;
• a mass portion coupled to the hollow body portion, the mass portion comprising a second material having a second density greater than the first density;
• and
• a filler material in the hollow body portion coupled to the at least one rib portion,
• wherein the rib portion width or the rib portion height varies along the rib portion length.

A golf club comprising:

• a shaft having a first end and a second end;
• a grip coupled to the first end;
• and
• a golf club head coupled to the second end, the golf club head comprising:
• a hollow body portion comprising an interior portion, an exterior portion, a toe portion with a toe portion edge, a heel portion with a heel portion edge, a front portion, a top portion with a top portion edge, a sole portion with a sole portion edge, and a back portion with a back wall portion, the back wall portion comprising:
• an outer surface;
• an inner surface;
• a perimeter portion;
• a port connecting the exterior portion to the interior portion;
• and
• at least one rib portion located between the port and the perimeter portion, the at least one rib portion having a rib portion height, a rib portion width, and a rib portion length, the rib portion height extending into the interior portion from the inner surface;
• a face portion coupled to the front portion;
• and
• a mass portion coupled to the hollow body portion, the mass portion comprising a material having a greater density than a material of the hollow body portion,
• wherein the rib portion height or the rib portion width is greater than or equal to 0.020 inch (0.508 mm) and less than or equal to 0.150 inch (3.810 mm).