Torque plate honing involves attaching a special plate that replicates the engine head’s forces when the engine is re-assembled. It is torqued down to the same specs and stud pattern as the head would be during the final assembly.
Torque plate honing allows for exact measurements when honing an engine. It is usually used on closed deck blocks and high-performance engines. Torque plate honing can also be beneficial on some open and semi-open decks.