Timing belt difference IV/V/VI

[ac02ire]

is there a difference between the timing belts of a V engine and the VI engine i know the belt is different between the IV and the V as the V's belt is tighter as i tried fitting the stock belt off my IV, now im after getting a V's belt sent to me in error but do i need to change it for a VI's as i am running a VI engine in my IV she seems to fit perfect when all alligned and ready to go but i dont want to turn the key on her till i get confirmation she'll be ok

[RSE MOTORSPORT]

Belts are the same for the 4 through to the 8MR only the earlies and the 9 thats different

[ac02ire]

maybe it was the belt that was damaged coz she was slipping when i tried to give her a full turn to make sure she was in order