I am replacing the head gasket on a 2002 Civic that I bought for $800. The machine shop rebuilt the head and I tried cleaning something black on the top of the block with blue Scotch-Bright pads and brake cleaner on shop towels.

All it did was shred both.

I tried a carbide scraper, but that immediately started scraping.

I need to try one of the plastic razors I bought from Ace for $1.79.

I want to put this thing together already! :)
--- SBBSecho 3.20-Win32
* Origin: -=[conchaos.synchro.net | ConstructiveChaos BBS]=- (1:226/18)