Are these blemishes make any difference? 5.3 Block is brand new, can I just assemble or do I need to take it in? Plan on doing a health H/C D1SC or Turbo
A fine file, emory cloth wrapped around a wooden dowel, a fine honing stone. Something like that should be fine. You have quite a bit of mild surface rust on the bore. In the process of cleaning that really well you will remove any deburring residue.
I agree with Scott, a simple debur is all you need. A dremel will take off too much material and create a bigger problem.
__________________ Steve Hayes
"Dust Off"
68 Camaro
Speed has never killed anyone. Suddenly becoming stationary, that's what gets you! "Jeremy Clarkson"