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Yes there is a gasket but a very important thing to do while you have the plate off is to add more holes.

It is very common for the 318's to have 4 small holes to let the oil flow from the filter to the block. 340's and 360's had 6 or 8.

either get a 340/360 plate or add some holes to the 318 plate. That is simply not enough oil flow. Your bearing will love you for it.


I never knew there was a different part number for the plate. 2402103 was the only number I could find. Do you have a part number for the one with more holes? Now I have seen the billet aluminum ones with more holes but they were aftermarket.



I do not have a part number with me but they used the same plates on the LA and Magnum small block. You an get one from a Junkyard 5.9 and use it or just drill a few extra holes. Here is a picture of a 318 vs 340/360 plate.

7531630-OilPlates.jpg (7019 downloads)