[BFBurk]

The ports are factory sizes. I had the heads off several years ago and had to order new intake and exhaust manifold gaskets. The intake ports are 2.34" high by 1.34" wide. One of my books say these are low and Cobrajet port sizes, the other book says the port sizes are medium riser and Cobrajet sizes. So I do not really know what heads I have! If your block and heads are unused, you have a goldmine!