New 360 Center Sump Oil Pan

Note: 360 Is 5.9
318 Is 5.2 they each have their own size rear main cap.
360/5.9 is larger than 318/5.2
For LA motors the 318/340’s have the larger rear radius seal area, the 360’s have a smaller rear area. Good discussion on the differences with pics here: Spotting the difference between 360 & 340 Oil Pan

For magnum motors the pan is the same for 5.2 and 5.9, same p/n’s for magnum pans at Summit or Mancini

Picture is a 340 engine showing the larger rear cap on the engine with the 360 pan having the smaller radius.

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