What would cause this on these diamond pistons...My friend has only ran these a few weeks and he changed heads and saw this..What would cause this ? 3 or 4 pistons have this in the same area only...
I wanted to beleive the same thing also....I found out just a few mins ago, he ran some 4 year old vp114 been sitting on concrete....Since the car was never raced and only ran while at idle , it just about has to be bad fuel...He gassed it a few times but never raced it nor ever left his shop...13:5.1 compression...