I'm going to re-cut valve seats, and pair valve-stem guides. Now I need new valves - in my machine shop they told me that I need more than 8.65mm diameter of valve stem - it's .341 in. if I calculate correctly.
I found that my old valves were about 4.911 in. - it's correspond the information from books about SBC.
But I'm not understand, how valve overall lenth wiil correspond with my camshaft kit.