here is some slight timing work on the sleeve
here is a cut exhaust port...notice there is still a little chrome left inthe corners....
here is another shot of the cut exhaust port, notice how the top of the port is bare brass..... Sometimes chrome will stain yellow from fuel residue and look like brass, but a quick little scrape will show you if its brass or chrome
and here is a crank from my C6..this crank is lightened and filled, well as bored and smoothed...