Fingersix
Remove a side/rear freeze Plug and Flush the Block that way. and Leave the water pump off the front. This way you can see everything that may come out. It will also clean the rear of the Block much better then trying to get it to come out the Small drain plug at the rear. One thing i have seen many times in the Past On Rebuilds Is Nobody take the time to Flush and Clean out The Very end of these Blocks. And everything Cakes Up around the end of the Number 6 cyl.
When every I do a rebuild either for myself Or on someone elses Motor. When the Head is off and The Motor is out I lay the Block On it's side and Use Air & water Pressure ,Even in some cases a small Pick if need be. To Make sure the Years of trash is Fully Cleaned out of the block. Then I do the same Once the Block comes Back from The machine shop.
God doesn't like ugly.
