Hi Jmortensen,
Thanks for a quick response. I was thinking of taking an extra step by cutting it open and blast the inside of the tank. Put the sealer on and then weld it back together. This is all depends on how to cut open the tank. If cutting around the edge (in the middle section of the tank) and the tank comes apart then welding back will not be a problem as long as I still have the lip around the tank. I guess my question is how the tank welded together from factory? I will inspect the tank carefully before I decide to cut it up. I am sure I will figure out a way to get in there to clean it up without cutting it up.
Also thanks for the tips on the oil pan. I did modified my LS1 oil pan and did some welding on it. I will be watching for any leaks.
Thanks again
v.