While having a discussion, Technician A says that replacement pistons for passenger cars and light trucks are destroked 0.15" to compensate for block and head resurfacing. Technician B says that they are destroked at 0.25". Who is correct?

Question

Quizplus · Accepted Answer

Replacement pistons for passenger cars and light trucks are not typically destroked by a specific amount such as 0.15" or 0.25" to compensate for block and head resurfacing. The concept of "destroking" pistons as described does not accurately reflect standard automotive repair practices. Pistons are chosen based on the engine's specifications and the desired compression ratio, not by reducing the stroke to compensate for machining of the block or head.

While Having a Discussion, Technician a Says That Replacement Pistons