Description: You can see from the slight inner exhaust port surface rusted area, these ports have never been modified. This uniformity of rust penetration is "Patina" which is a direct indicator of the non disturbed Cast Iron Ports in the cylinder head
You can see from the slight inner exhaust port surface rusted area, these ports have never been modified. This uniformity of rust penetration is "Patina" which is a direct indicator of the non disturbed Cast Iron Ports in the cylinder head
