PietroBR1151 mounting holes are equal to 1151v2.The 1151v2 name was created by intel because they made some changes on the pinout for the 8th gen CPU.So, if it says it is compatible with 1151, it shouldn't be an issue to fit it on the 1151v2 as well.This guy from reddit had the same doubt about fitting older coolers to newer gen CPUhttps://www.reddit.com/r/intel/comments/7cmcvq/do_the_old_cpucoolers_fit_on_socket_1151_v2/