Unfortunately I'm not sure what 360 :( It's been professionally built (whatever that means) and when I bought the car he did mention the company but I have since forgotten. The pan had so many road rashes on it I figured maybe thats what caused leaking but when I dropped it, it had some spots of gasket sealer in various spots around the pan which I think that may have contributed. It was a one piece gasket looked like it should have worked. The motor has very low miles and ran awesome, just had lots of leaks, I bought the cork gaskets, and lots of RTV Black. Just not sure which way I should go :) lots seem to say no gasket will work but I've never done that before...