:surprise: Is the stock oil pan on my 06 the only one that will fit the "R"? When I was detailing my front rotors and caliper carriers I found myself wondering if that large through hole on the cast aluminum pan had any ill effects on bottom end lubrication? I realize it's a holdover along with the splined spindle from the 4wheel drive chevy that shares the same platform but is there more to it? I also noticed that the 06 corvette C6 has the oil filter on the other side as does most other LS engines that I've seen. Could someone please clue me.