They are specific to 1.8 and 2.0 16V twinspark engines, regardless of car model (145/146/147/155/156/164/166). Check www.home.hccnet.nl/jaap.bouma for a picture of the locks.
!!! DON'T do the job without the cam locks!!!
There is one type of cam lock for the 1.8 and 2.0 and another for the 1.6.
non franchise dealers can do the job if they have the multi fit type locks providing they lock the cams with cylinder 1 at tdc. The multi fit ones have to be fitted before you commence the strip down if the belt is removed without fitting the locks the multi fit ones are no good.
Incidently i have a set for the 1.8 and 2.0 which I hire out to any one on here. See the sticky above.