Will lifting weights stunt my growth & mess up my Track events?

i grew 3 inches last summer and i just turned 17,4 weeks ago i run a lot i don't lift weight because i don't wanna stunt my growth i am the shortest guy that runs the 400 and i beat guys that are 6ft or taller the closes guy that's close to me is 5"6 and he is done with high school i run the 400 in 50.01 sec i see a lot of Kenyans that get first in the Olympics are BERNARD LAGAT Events: (Middle Distance) middle distance means you run more than 1 mile race his Height: 5-8. Weight: 134 but Asbel Kiprop is 6'2" and listed variously as 136 or 154 lbs and hes the fastest 800m and miler in the world right now and that's what i wanna get my father is 5"7 and my mother is 4"11 they lifted weights in high school (my time in the 800m is 1:58.11 & my mile time is 4:20 i don't run more than 1 mile will I get 6 ft)