Mick's 70 Lowlight

Got another delivery today, a pair of Sig Erson 1.5:1 ratio rockers. I need to swap out the ball style adjusters for cup style so that I can use a standard push rod. I'll probably stick these on the 1600 when I've got the heads back on. With the port work and a bit more lift it should really help liven things up a bit.

Also fitted the new valve seats to the other head. Cooked up the head on the BBQ and froze the seats in the freezer overnight. A little drifting and the seats were in. I cut the new seats and re-cut the inlet seats to suit the new stainless valves. I also gave the heads a 3 angle valve job. After lapping in the valves I also added a 30 degree cut to the valves up to the lap mark.

Apart from some final finishing the heads are pretty much done. I still need to cc them so may have some fettling to do to get the CR right. Hopefully I'm not too far away from where I need to be.