ridge ring is a cabon ring where the piston stops its upward motion. Some engines will have "more" of a ridge ring than others. You need a ridge reamer to cut that carbon ring out.


1937 Chevy Pickup
In the Gallery
1952 Chevy Panel
In the Gallery
More photos
1950 Chevy Coupe
Pictures!

I'd rather walk and carry a Chevy hub cap than ride in a Ferd.
I can explain it to you, but I can't understand it for you smile