PPC bolt question

Already have my bbl and action ready. I have a 223 bolt waiting to be cut. What are the dimensions needed to complete this conversion? I know the case is .447 so I was gonna open the face up to .454. I'm not sure whether or not I need to deepen the face as well, I'm thinkin no. Does the extractor need to be thinned a bit on the inside wall, to makeup for the new radius?

Please don't suggest I go talk to Fred at SSS. I have been calling and leaving messages for months now about this project. If they're too busy to get back to me then they don't need my small donation.

Really. All the knowledge the collective possesses yet no answer to my question.

Call Scott at Savagegunsmithing, not sure of his phone #, but go to www.savagegunsmithing.com, it's on the web site, unlike Fred, he will talk to people, customers or not.
He's a Master riflesmith and can answer any question you have about your conversion. He accurized a .308 Model 10 for me and that sucker shoots like it has eyes.

My best, John K

Will do.Thanks