Moala was the only son in a five-child family and was not permitted by his mother to play football until high school; however he did participate in basketball and baseball. Moala played high school football at Western High School in Anaheim, California, where he was teammates with Mike Iupati. As a senior in 2002 he was a Super Prep All-Farwest, Prep Star All-West, Tom Lemming All-West and Tacoma News Tribune Western 100 selection.
College career
Moala originally signed with the University of Southern California in 2003, but did not qualify for admission. He attended Cypress College for one year, but did not play football there, before transferring into USC. During his first year at USC in 2004 he was redshirted. In 2005 he started two games for the Trojans recording eight tackles.