> i have a 1990 vanagon that is getting new heads. THe
> local mechanic told me to clean the studs that hold
> the head with a die. does any one know the dimension
> die that i need. i only have a standered set, so i
> just need to buy that individual die.

You want to buy both the tap and die.  10x1.50mm.  Use the tap to clean
out the head cap nuts.

Mike