man it took me 2 months to figure where my oil leak was.There is a very small gap in between the block and the head where the oil feed hole is sence ls do not have the oil passage.The oil was running down the back side of my block and looked just like it was comming from where the golden eagle ls/vtec sandwich was bolted.Well i bought the cheap 4an kit as well and just tried it to see and still had the same oil leaking in the same spot.I pulled the head and sure enof the oil was coming from the plug in the head.I put the golden eagle 6an kit back on and i dont leak a drop of oil.Everything turned out perfect.