...ok, the motor has been soaking in a combination of Marvel's Mystery oil, Transmission Fluid and Diesel Fuel for 6 months {2 months on one side, 5 on the other}. I'm headed out to the garage to take the heads off now. I read somewhere that when you take off aluminum heads you should loosen the bolts from the outside in. Is this right??? Anything else that I should look for??? Thanks Everyone! Bill