I suppose it won't hurt to try a PCV or twin breathers on each valve cover before I remove the engine again .

Thanks Richard, I will inspect the brand new oil pan once I pull out the engine (hopefully I wont have to!!)

I tell you what, I would pay anyone $1000 to gaurantee that I will have no leaks next time I put this engine in!!

No other suggestions?? Like I said, it has been the front and rear oil pan rubber seals which are causing me grief. Sometimes front, sometimes rear, sometimes both.

Thanks guys