I have tried to find the answer to this by searching the forums but I didnt find a clear cut answer.

I have 67 chevelle with the original 283 in it. I would like to put new heads on it as
1. Dont want to have to add lead
and
2. Would like more power.

My question is, will the 283 accept 2.02 valves without any machining, or does it have to be bored out to handle valves that size?