hey
as far as im aware the astra g and vec c z22se and z22yh cams are the same when setting up the timing on the z22se and the z22yh the cam lobes over #4 are in the same location
the only real difference on the cam side of things is the z22yh had a different ex sprocket for the cam sensor
the difference in the head are just the casting the lay out is the same all be it the inlet swirl flaps and the di injection
i used vec c inlet cams in my new engine not to sure if they were from the z22se or the z22yh tho but the inlet cam was the same as the exhaust as i used 2 inlet cams 🙂
pt numbers are different for both engines these numbers may be superseded now only real way to find out is to call a local vx part desk and ask for the current numbers
z22se
inlet - 9194109
ex - 9194102
z22yh
inlet - 24442482
ex - 24442481
other than having a set of both cams in my hands to compare i cannot be 100% sure