If you have not yet, before you go buying this and that, get a plan on paper and stick to it.

You could end up thousands ahead in the end, or be like alot of us and just be sitting on alot of parts you might get 1/2 of what you paid.

Even thin pushrod walls will crack with alot of heat cycles, and with little trouble the K&S metals #8139 1/2x.014 tubes fit the pushrod tubes.