While taking my old engine apart, it’s becoming quite clear that the problems are most likely caused by something that came in the belt area. I found marks on the balancer shaft pulleys and the timing belt pulley. So it looks like I am in the market for new pulleys for the new engine to be build.

I could buy and use the pulleys which are made by Fiat/Lancia/Alfa, the OEM ones or I could look for some lightweight custom pulleys. I know the vernier pulleys for the cam shafts (which are on the to buy list), but what about the other pulleys? Does someone have experience on this subject or maybe know a shop that sells these pulleys?