I got my 87 engine and took the covers off just to check it out and it’s definitely a nice engine. All the case threads feel tight and new like it hasn’t been abused it’s whole life. I was looking through the intake and noticed a piece of rubber or something on the crank. I pulled the cylinder off and found these little pieces of something only between the rod and crank weights in the pic. Any idea what it could be? It looks like pieces of permatex. The seller said it’s a fresh build and it definitely looks like it. I’m going to do a leak down first and hopefully it’s seals like he thought it needed.