I can't give you a degree angle of spray but I know they are the II 80lpm nozzles for 03/04 trucks. I never ran them but I could call II and find out if you're interested.
Ended up having to reuse my head because the ported head I bought ended up having a crack and at least one seat is junk.
Have that head if someone is lookin for a head to play around with.
Have been told also that these heads can be run with a crack. Seats will need replaced though