On Alfa number 15
AO Platinum Member
Join Date: Dec 2005
Location: United Kingdom
Re: 156 1.8T Cambelt Gone - Help
It will almost certainly have bent every single valve.
head damage itself isn't that common though.
You should also replace the big end shells after fixing the head as the impact of pistons hitting valves can flat spot them, casuing them to fail at a later date and wrecking the crank.
I would personally find a good second hand head and fit that along with a set of shells. Shells can be done without removing the engine by removing the sump. I think they are around £100 for a set.