Golf club head

In a golf club head having a head body made from a molded fiber-reinforced resin, said head body having a front face containing a plurality of spaced narrow grooves forming scoring lines, said grooves being formed integrally with the head body when it is molded and having a bottom portion spaced inwardly from the front face, two side walls and spaced, opposed upper edges on either side thereof where the side walls of the grooves meet the front face, the outermost layer of the face of the head body comprising a reinforcing cloth material impregnated with a matrix resin, said cloth material lying adjacent the face of the club in the areas between the grooves and in the bottom portion of the grooves but being spaced inwardly therefrom in the areas of the side walls and edges of the grooves whereby said resin alone forms the side walls and edges of the grooves, the improvement wherein said matrix resin contains whiskers in an amount of from 0.5 to 5 parts by volume per 100 parts by volume of the matrix resin so that said side walls and edges of the grooves will be formed of said matrix resin containing the whiskers.