are you sure you have all the bolts out???? on some engines, there is a bolt that threads thru the top edge FROM THE BACK SIDE of the timing cover into the water pump.
The block should have nothing bolted to it if you want the machine shop to just machine the block. Most charge for anything they have to do.
The block should have nothing bolted to it if you want the machine shop to just machine the block. Most charge for anything they have to do.