Tech Tuesday CP-Carrillo Tech Talk - Part 3 1. Do you know why some pistons have what is referred to as a “donut dish” while other have a normal flat bottomed dish? 2. Stretch vs. Torque? 3. What Are pin buttons? 4. Did you know at CP-Carrillo we use Rapid manufacture prototyping. 5. What do oil rail supports do? 6. Do I need a heavy piston & pin combo for boosted applications? 7. One of the most over looked and misunderstood measurements of the engine is Piston Ring end gaps.