Looking at a 6.0 today n I see a nice mark on cylinder 1. All other looks great just this one. I dont feel too good about it but what do you all think?

 

 

It is hard to tell, but is it just light corrosion? Is there a deep scratch there too? Can you explain what got you to where you are at? Is it a new rebuild, honed or bored? Did you do a compression check before the tear down?

 

Get a hone and clean it up...cross ball hone too

 

Guy bought it and took the heads and I got the block so dont know the condition beforehand. Claims to have less than 40k on it. There is a gouge above the corrosion and thats what has me concerned. You can feel it without trying.

 

It's pitted needs to be bored !
Mine looked like that before I started the 370 build

 

It looks like the engine sat for a long time with water in that cylinder, and then had a hone ran through it.

 

^^^ bingo!

 

Thats exactly what mine looked liked went ahead and bored to be on safe side!

 

bore to be on safe side and get 6 more cubes while at it....