[Oldsguy]

Thread necromancy here, I looked at those pictures again and the crossover of the driver's side is just like the stock single exhaust was done, except that the pipe does not join with the passenger side and instead passes to the aft of the car. Therefore I think the pan is a stock non-toro pan, it also looks identical to the pan on the 455's I own. I can't say for sure that it isn't a toro pan though.

Finally, as you said in your last post you are comfortable with it and it makes you happy. When the weather gets warmer you will probably find out for sure. It is still very nice and the work is well done.

BTW, for what it is worth, I just wonder how much heat is radiated into the oil pan from that crossover running underneath it? Probably doesn't make a lot of difference.