1960 cylinder head design. Good grief. A two piece cam that has 2 bearings per side and you have to drift the inner bearing through twice to remove it, whilst not being able to gain access to square it through the hole properly. Chap at the bead blasters said he expected to see a load of hammer marks so he reckoned I'd done ok, but what a stoopid design. Worst bit was the cam end plate screws all needed drilling out. And I only have a battery drill. I suspect a pillar drill will be purchased shortly after we move and I get my beeeeeeg garage. On the plus side while crawling on the garage floor looking for the pingfuckit that flew off the cam chain I found the missing and completely unobtanium fork seal retainer.