A method of making a bi-metallic component, wherein the bi-metallic component, comprising: a cast member formed from a first material; and a tubular stub member (20a, 20b) formed from a second material and having an open first end and an open second end that is opposite the first end, the cast member cast around the second end, and the first end extending from the cast member, the stub member (20a, 20b) having an interior surface that is configured to sealingly receive a removable core member (28a, 28b) for preventing molten first material from flowing through the stub member (20a, 20b) between the second end and the first end thereof during casting of the cast member around the second end; the method comprising: a) providing a first material; b) providing the tubular stub member (20a, 20b) made from a second material; c) positioning a portion of the tubular stub member (20a, 20b) in a mold (22a, 22b); d) removably inserting the core member into the tubular stub member (20a, 20b); e) introducing the first material in molten form into the mold (22a, 22b) around the tubular stub member (20a, 20b); f) holding the core member (28a, 28b) in the tubular stub member (20a, 20b) with a sufficient force to prevent first material from filling the tubular stub member (20a, 20b); g) solidifying the first material to form a cast member in the mold (22a, 22b) around a portion of the tubular stub member (20a, 20b), the solidified cast member and the tubular stub member (20a, 20b) together forming the bi-metallic component; and h) opening the mold (22a, 22b) to release the bi-metallic component, wherein the interior surface of the stub member (20a, 20b) is dimensioned to receive the removable core member with a slip fit tolerance defining a gap therebetween, and wherein the second end of the stub member (20a, 20b) is sufficiently ductile such that it is deformed when the second end of the stub member (20a, 20b) is held in the mold (22a, 22b) during forming of the cast member around the second end, such that the width of the gap is decreased within a first region thereof, for substantially preventing molten first material from flowing between a second region on one side of the first region and a third region on a side of the first region that is opposite the one side. a cast member formed from a first material; and a tubular stub member (20a, 20b) formed from a second material and having an open first end and an open second end that is opposite the first end, the cast member cast around the second end, and the first end extending from the cast member, the stub member (20a, 20b) having an interior surface that is configured to sealingly receive a removable core member (28a, 28b) for preventing molten first material from flowing through the stub member (20a, 20b) between the second end and the first end thereof during casting of the cast member around the second end; the method comprising: a) providing a first material; b) providing the tubular stub member (20a, 20b) made from a second material; c) positioning a portion of the tubular stub member (20a, 20b) in a mold (22a, 22b); d) removably inserting the core member into the tubular stub member (20a, 20b); e) introducing the first material in molten form into the mold (22a, 22b) around the tubular stub member (20a, 20b); f) holding the core member (28a, 28b) in the tubular stub member (20a, 20b) with a sufficient force to prevent first material from filling the tubular stub member (20a, 20b); g) solidifying the first material to form a cast member in the mold (22a, 22b) around a portion of the tubular stub member (20a, 20b), the solidified cast member and the tubular stub member (20a, 20b) together forming the bi-metallic component; and h) opening the mold (22a, 22b) to release the bi-metallic component, a) providing a first material; b) providing the tubular stub member (20a, 20b) made from a second material; c) positioning a portion of the tubular stub member (20a, 20b) in a mold (22a, 22b); d) removably inserting the core member into the tubular stub member (20a, 20b); e) introducing the first material in molten form into the mold (22a, 22b) around the tubular stub member (20a, 20b); f) holding the core member (28a, 28b) in the tubular stub member (20a, 20b) with a sufficient force to prevent first material from filling the tubular stub member (20a, 20b); g) solidifying the first material to form a cast member in the mold (22a, 22b) around a portion of the tubular stub member (20a, 20b), the solidified cast member and the tubular stub member (20a, 20b) together forming the bi-metallic component; and h) opening the mold (22a, 22b) to release the bi-metallic component, wherein the interior surface of the stub member (20a, 20b) is dimensioned to receive the removable core member with a slip fit tolerance defining a gap therebetween, and wherein the second end of the stub member (20a, 20b) is sufficiently ductile such that it is deformed when the second end of the stub member (20a, 20b) is held in the mold (22a, 22b) during forming of the cast member around the second end, such that the width of the gap is decreased within a first region thereof, for substantially preventing molten first material from flowing between a second region on one side of the first region and a third region on a side of the first region that is opposite the one side.