See the shaved stock head i bought off a member who said it was setup for a 4 mill. I bought the 4 mill ported cyls second hand so i had no idea on what gaskets to use. I went on assumption. I was wrong. So knowing my squish is .019 ill get .030 base gaskets. Its the crank with bronze rods, I guess its a rather popular thing to have to do for these cranks. Does anyone have any ideas to clearancing the top of the case to allow the crank to rotate freely but not separate the halves or do you guys think its not possible? I know metal shavings are bad but if i can flush them out or whatever id rather do that instead of having to fully take it apart again. Any ideas are appreciated.