Summitt and Jegs have them (Milodon). Buy a 180 and a 165. Sometimes if you have a 165 t-stat it stays open and the coolant does not remain in the rad long enough to cool it down so it will heat up on a long run (I have seen mine go to 195 n a long highway run...3hrs @ 3200 rpm). Yes the 180 will run warmer BUT it will run at a more constant temp (like 185). I have NEVER drilled holes in the t-stat to "bleed" when filling. I would fill to normal level, start the car with full heat on and you will know when the t-stat opens as the level drops. Fill until the fluid covers the fins and no longer drops. This has worked for me for 25 years, no issues. -- Steve '63 Hemi Polara ---- 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.