Verify.. every bolt hole is in the correct location and proper angle.. verify both the coolant side and oil side of every Passage.. if you're doing a Max effort deal verify the correct angle on every lifter.. hours were all over the place.. actually had to increase the lifter diameter to correct the issue.. oil drain backs definitely going to need to be improved.. if you were doing a wet sump
. But like I stated earlier from what I can see they definitely look better