Here are all the winners of the Little League World Series since 1947, listed with the teams they defeated and the score of the game.
1947: Williamsport, PA beat Lock Haven, PA (16-7)
1948: Lock Haven, PA beat St. Petersburg, FL (6-5)
1949: Hammonton, NJ beat Pensacola, FL (5-0)
1950: Houston, TX beat Bridgeport, CT (2-1)
1951: Stamford, CT beat Austin, TX (3-0)
1952: Norwalk, CT beat Monongahela, PA (4-3)
1953: Birmingham, AL beat Schenectady, NY (1-0)
1954: Schenectady, NY beat Colton, CA (7-5)
1955: Morrisville, PA beat Merchantville, NJ (4-3)
1956: Roswell, NM beat Delaware, NJ (3-1)
1957: Monterrey, Mexico beat La Mesa, CA (4-0)
1958: Monterrey, Mexico beat Kankakee, IL (10-1)
1959: Hamtramck, MI beat Auburn, CA (12-0)
1960: Levittown, PA beat Ft. Worth, TX (5-0)
1961: El Cajon, CA beat El Campo, TX (4-2)
1962: San Jose, CA beat Kankakee, IL (3-0)
1963: Granada Hills, CA beat Stratford, CT (2-1)
1964: Staten Island, NY beat Monterrey, Mexico (4-0)
1965: Windsor Locks, CT beat Ontario, Canada (3-1)
1966: Houston, TX beat West New York, NJ (8-2)
1967: Tokyo, Japan beat Chicago, IL (4-1)
1968: Osaka, Japan beat Richmond, VA (1-0)
1969: Taipei, Taiwan beat Santa Clara, CA (5-0)
1970: Wayne, NJ beat Campbell, CA (2-0)
1971: Tainan, Taiwan beat Gary, IN (12-3)
1972: Taipei, Taiwan beat Hammond, IN (6-0)
1973: Tainan City, Taiwan beat Tucson, AZ (12-0)
1974: Tainan City, Taiwan beat Red Bluff, CA (12-1)
1975: Lakewood, NJ beat Tampa, FL (4-3)
1976: Tokyo, Japan beat Campbell, CA (10-3)
1977: Li-Teh, Taiwan beat El Cajon, CA (7-2)
1978: Pin-Tung, Taiwan beat Danville, CA (11-1)
1979: Pu-Tzu Town, Taiwan beat Campbell, CA (2-1)
1980: Hua Lian, Taiwan beat Tampa, FL (4-3)
1981: Tai-Chung, Taiwan beat Tampa, FL (4-2)
1982: Kirkland, WA beat Pu-Tzu Town, Taiwan (6-0)
1983: Marietta, GA beat Liquito Hernandez, Dominican Republic (3-1)
1984: Seoul, South Korea beat Altamonte Springs, FL (6-2)
1985: Seoul, South Korea beat Mexicali, Mexico (7-1)
1986: Tainan Park, Taiwan beat Tucson, AZ (12-0)
1987: Hua Lian, Chinese Taipei beat Irvine, CA (21-1)
1988: Tai-Chung, Chinese Taipei beat Pearl City, HI (10-0)
1989: Trumbull, CT beat Koahsuing, Chinese Taipei (5-2)
1990: Tainan County, Chinese Taipei beat Shippensburg, PA (9-0)
1991: Tai-Chung, Chinese Taipei beat Danville, CA (11-0)
1992: Long Beach, CA beat Mindanao, Phillipines (6-0)
1993: Long Beach, CA beat David, Panama (3-2)
1994: Maracaibo, Venezuela beat Northridge, CA (4-3)
1995: Tainan, Taiwan beat Spring, TX (17-3)
1996: Kao-Hsung, Chinese Taipei beat Cranston, RI (13-3)
1997: Guadalupe, Mexico beat Mission Viejo, CA (5-4)
1998: Toms River, NJ beat Kashima, Japan (12-9)
1999: Osaka, Japan beat Phoenix City, AL (5-0)
2000: Maracaibo, Venezuela beat Bellaire, TX (3-2)
2001: Tokyo, Japan beat Apopka, Fl (2-1)
This information was partially taken from www.littleleague.org with the rest having been taken from the 1996 World Almanac and Book of Facts. Please /msg with any corrections, especially regarding the difference between Taiwan and Chinese Taipei, which I was unable to keep very straight at all.