1
FE Technical Forum / Re: BBM 427 block build info?
« on: June 14, 2024, 05:45:24 PM »
I don’t remember if it was an issue with the BBM blocks, but I know there were some aftermarket FE blocks where the oil passage hole in the deck of the block is in a slightly different location than the factory Ford blocks. This can cause lack of oil to the heads, if the hole in the head gasket blocks the passage, or stack up of blockage with head gasket and oil path in the cylinder head. In any case, check you have a clear path on that oil passage all the way from the block to the oil passage in the head.