Might have been a lead used when they checked the integrity of the casting at the factory? Or maybe remnants of a hanger from the casting or painting shop? Tom I've seen this in a number of original Mopar engines so its not unique. However, don't know the "why." Akron Don I was ulling my extra poly aparo today and when I got the intake off, it looks like there is a wire running through the coolant jacket of each head. What in the world is this? ---- Please address private mail -- mail of interest to only one person -- directly to that person. I.e., send parts/car transactions and negotiations as well as other personal messages only to the intended recipient, not to the Clubhouse public address. This practice will protect your privacy, reduce the total volume of mail and fine tune the content signal to Mopar topic. Thanks! '62 to '65 Mopar Clubhouse Discussion Guidelines: http://www.1962to1965mopar.ornocar.org/mletiq.html.