A little bit of sad news, I have glued 10 of the 12 heads in place and what I have found is that the engines crank is not going to be able to take the torque required to have the engine turn over. I am still going to do the engine timing so that it is correct.
Even if I made the the crank bearing shafts thicker the crank shells would have failed next.
Even if I made the the crank bearing shafts thicker the crank shells would have failed next.