The cylinder sleeve is some kind of steel.
thanks Dave T
Then yes you do have cast iron sleeves, which I thought you did..... Please do not try to bore the hole, just hone it to get rid of scratch marks and get the cross hatch back.....
There are stones made for cast iron and special stones for the aluminum bores....... Ball stones are good in a sense, we use them on outboard engines all the time......
One thing to remember is you need to have the right tension on the 3 stone version, they are adjustable.......The ball type are made for different size bores.....
You do have to mic the cylinder to see if it's in spec............
Just some info for you...... Mon Ami ~!~!