To get our new LS3 fitting into our ’01 Camaro, we needed to swap to the correct oil pan (PN 12628771). Again, we could have used the old LS1 as an organ donor, but decided to try keeping it in one piece, since it’s easier to sell that way. Here you can see how much its profile differs from the LS3’s Corvette pan. Note: for some reason the new oil pan has a different thread pattern for the oil filter and no longer accepts the same filter. It now takes a ’10 Camaro filter.