Yes, DRTDEVL, I would be pleased to know that name of that cleaner! <img src="/forums/images/graemlins/smile.gif" alt="" /> <img src="/forums/images/graemlins/kewl.gif" alt="" />

Thanks for the pics Darin-- I didn't want to sound like another name for a kitty cat, but I had just started to get the first combustion chamber lookin' good after about 2 hours of scrubbing. And then my engineer mind extrapolated how long it would take to do the whole head based on this experience, and I decided it was time for dinner. I just know how soft aluminum is, and I'm a little bit tenative on using anything sharp or hard on it. I did buy some brake parts cleaner today, so I'll give that a shot tomorrow. Seeing that fist picture of your head gives me some hope. I think most of the dark spots I'm still seeing is old gasket material. And yes-- porosity is a word. Casting foundries know it very well!

Thanks again for the help guys. You all have been more help than you know, and a couple of cold ones would be coming your way if you were in the Atlanta area. <img src="/forums/images/graemlins/cheers.gif" alt="" /> <img src="/forums/images/graemlins/cheers.gif" alt="" />