Nissan has just announced that it will incorporate state of the art – Mirror Bore Manufacturing Technology – into its 2019 Altima’s 2.5-Liter, 4-Cylinder Engine!  Amazingly, this is the same process used in the high-performance Nissan GT-R!


The process of incorporating Mirror Bore Manufacturing – first used in the Nissan GT-R – into the 2019 Altima is broken down into two stages – spraying and polishing.  The first stage involves spraying the inside of the Altima’s engine – where the pistons move – creating a special coating (0.2 millimeters thick) on the inside of the four cylinders of the engine block.

The First Stage:  Spraying The Four Cylinders Inside The Engine Block


The second stage involves polishing the inside of each four cylinder in the engine block – until each cylinder is shiny and smooth – using a special drill bit – containing tiny bits of diamonds – and spinning it at high speed!  This process gives the cylinder its “Mirror Bore” name – by creating a reflective surface on the cylinder walls!

The Second Stage:  Polishing The Four Cylinders Inside The Engine Block With A Special Drill Bit


After:  The Four Cylinders Inside The Engine Block – Shiny And Smooth


“Advanced technology like the Mirror Bore process only makes sense for Nissan if we can offer it to as many customers as possible,” said Jay Boyte, Director of Engineering, Nissan North America. “The end result is an innovative and efficient engine made with manufacturing technology usually not available at this volume or price point.” 

The equipment needed for the Mirror Bore Manufacturing Process was added to the Nissan Decherd Powertrain Assembly Plant in Tennessee for the launch of the 2019 Altima.  What’s impressive about the team at the Decherd Plant is that they build an engine every 19 seconds and are capable of building around 1.4 million engines a year.

If you are interested in stepping into a brand new 2019 Nissan Altima, then please stop by and see us at our Guelph Nissan dealership.  You can also feel free to browse our 2019 Nissan Altima Online Inventory. 

Guelph Nissan

805 Woodlawn Rd,

Guelph, ON N1K 1E9

Phone: (519) 822-9200