Diamond Pistons For LTG

These are custom forged pistons for the LTG engine, made for us by Diamond to our specs. They use the high performance 2618 forging and are 9.5:1 compression. These also have horizontal gas ports to help the top ring seal better. To finish these off we upgraded the wrist pins to a thicker wall H13 tool steel. In our experience most ecotec pistons come with a weak pin that can flex under high cylinder pressure. This causes premature piston wear and unstable ring sealing of the cylinders.