Re: How do I measure how much can be milled off 1951 288 head?

Posted by TxGoat On 2024/6/5 18:48:16

Old heads have unknown section thicknesses due to rust, casting variations, and the possibility that the head has already been milled, and perhaps the block decked. I would only mill it as necessary to correct minor pitting or distortion. Packard designed the head to achieve minimum chamber area and volume consistent with good overall performance. They also machined the combustion chambers to achieve consistent chamber volume and maximum flow characteristics while minimizing carbon deposition.