Last I knew the head gasket of choice for the Brumfield head is the Felpro 7013 revision 4. I had a head gasket failure about 5 years ago and replaced it with the Felpro, good so far. Got the gasket from Brattons.
Concerning how the kingpin holes can get enlarged: It can start to happen after kingpin spindle jobs when the taper pin is inserted and tightened with a wrench instead of hammered in and then tightened. This can cause a loose fit between the kingpin and axle. After a while the kingpin will rock...
My camber came out on the money. I did have the same concern about the 7 degree camber using the hammer method. I was careful to beat an equal amount on the top and bottom bosses. The small amount of actual movement to tighten the holes makes it unlikely you would have a significant change in...
I just went through the same axle situation. My axle kingpin holes were very sloppy. After talking with several model A club members they recommended beating the ends of the axle with a shop hammer to slightly tighten the holes. They had seen this numerous times and this process worked. The...