Strange looking wear on my 5.9 cylinders

pishta said

run it. quit coffee and put that in a jar. In a year, youll have enough to get +.010 pistons and a bore job...but you wont feel any difference till then. Your that far in, remove the piston and check the rings. at least clean them out and position the gap away from that scratch. Knock that bugger off the piston top with a file so it wont cause a knock.

Click to expand...

I don't know where you will find .010" over pistons but this is good advice. Dingle ball hone it and move the hone WAY faster than you think. Better yet take it to a machine shop and have them deglaze with their rigid hone CK-10 or whatever they have. Your engine will rock with a little more clearance and fresh cylinder surface. Get 4.005" rings and set gap tighter than whatever its at now and you will have a decent piece. J.Rob