I Also Own a Mustang and on A Forum or Two...

An update from BluePrint:

Our production team met about this today and we are really perplexed by this whole deal. As you all know we build a large number of engines (over 50 a day) and the fact that this is only happening on a miniscule amount of them has us scratching our heads. We too want this resolved immediately.

In addition to our current process of measuring the external temperature of the engine and requiring it to be cool before it is packaged, we will immediately increase the amount of rust preventative used when wiping the heads down as well as adding a moisture absorbing paper to our crates.

We will continue to explore more, and better options to combat this. Our Goal is to identify, and remedy the cause, Not mask it by bolting on additional parts, or dust covers. This is again a moisture issue within the packaging bag and crate.

Thanks for the feedback and once again would like to publicly apologize to the OP for putting him through this mess.

Johnny McDevitt
Director of Product Development
BluePrint Engines