Key to increasing the performance of an L-Series motor are modifications to the cylinder chambers. This article covers CC'ing, unshrouding the valves, valve set transitions and chamber polishing.

With the Datsun Cylinder Head disassembled now is the time to clean it and see what you have before you begin making performance modifications.

Disassembling a Datsun Cylinder Head is straight forward with a few unique tools. Once the head is dissembled and cleaned you can begin making performance modifications.