X 2 what Tom said, 6 qts.
I am a little late to the party, but I have a picture of 2 different 292 dipsticks, one from 65, one from 79. When lined up together so that the tube bulge that seats on the block boss matchs, they penetrate the pan the same length, they both extend 7 7/8 past the block boss. the "add" line is 1 inch from the tip, and the "full" line is 1 1/2 from the tip.
PM me and I will be glad to send a picture.
hope this helps, Tad