I think the usual view is that unless the bore is badly damaged, at most a light hone is called for, but far more often, the bore should be left alone. Briggs does not recommend deglazing their aluminium bores. Most times you only need to clean it, measure the ring gaps with new standard rings, and if they are OK, lap the valves and put it back together. Considering you can probably get a similar engine in good condition for about $20, more elaborate procedures are both a waste of money, and less likely to give a good result than the simple approach.
The position is sometimes different with the large Briggs engines, if they have the optional cast iron bore liner. However even in that case, you always need to plan the job after finding out the cost of a good used engine. Remember Briggs built side valve engines at the rate of millions per year - they are not rare or special.
