I'm going out on a limb here that the 6.1 block used in that build was the older version. The new version we use in the super charged combo is not available with lifter locations to support a 6.1 cylinder head configuration. Not yet anyway it is in the master plan just further down the list.
Mike
That's the picture you gave us in my other post? The lifters are not in the stock location. R U saying production heads won't work? Matt
