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They are align bored as well. Can't use different ones that did not come with your head from the factory. Why would the one guy think the non vtec heads are different.
Yeah you really should use the original ones. It doesn't make it right but I know people that have done it without any issues. It is an option however and if you want you can plastigauge the cam cap clearances just like main or rod bearing clearances and make sure they are within spec; as long as they are I wouldn't worry about it.