I tell you what I just got done doing. I'm putting my Ford 400 back together. I don't know what it is with these cork gaskets anymore, but they are so thin and so crappy that they split all to hell when you torque the bolts to even 5 LB FT. I just wasn't satisfied with it as the cork sides were all stickin out the sides from being split.....and I did NOT over torque them. So I pulled the pan back off, removed the cork sides, cleaned it all up good and put a good bead of RTV on the sides and joined it into the corners of the pan seals front and rear and put the pan back on. I bet that beeotch seals now. I'd put a one piece oil pan gasket on it, but nobody makes one.