the valve faces on the non-vtec motors are of a smaller diameter than the vtec ones. When Honda made the stock pistons they made the valve reliefs the smaller diameter. They will be alright on stock cams if nothing is shaved but like Zee said you change cams or cam timing much then you are headed for at least some bent valves if not broken ones. CTR cams might be too much. Either way I'd still clay test on the stock cams if I put it together.
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Don't bother giving me "rep", I won't return it and I think it is stupid.
Gracie Barra Clearwater
Gyms in Clearwater, St. Pete and Port Richey
pm me if you are interested in trying a free class at any of the gyms.