Cleaning block for H/C swap
#3
I used a scotchbrite pad to clean up the head gaskets and pistons. It worked really well. As far as the bolt holes. I took one of the old head bolts and cut two grooves in it down the threads. It worked like a thread tap. Worked out nicely. There wasn't that much in there anyways. When I was done, I used my air compressor to blow everything out.