New from Porsche Classic: magnesium crankcases for early 911 models

Porsche Classic just made it even easier to build virtually all-new engines for many old-school 911 models.

Magnesium crankcases are now available for F and G series 911 models built between 1968 and 1976, and cover 2.0-, 2.2-, 2.4- and 2.7-liter engines–and yes, the reissue also includes the Carrera RS 2.7.

Instead of having to repair aging crankcases or replace with used parts, customers can now purchase a new magnesium unit from any Porsche Classic partner or Porsche dealership worldwide.

Citing increasing demand from customers, Ulrike Lutz, Director of Porsche Classic, notes that the new crankcases help to close “another gap in our range of spare parts, making it possible to build completely new engines for most classic 911 models.”

The new parts are constructed using sand casting, which are then machined on a five-axis CNC machine. Porsche points out that even though more than 50 different tools are used to cut, drill and mill the crankcase, very little material is actually removed: “For the milled surfaces, for example, it is only about three to four hundredths of a millimeter.”

Once removed from the CNC machine, the crankcases are measured using 3D measuring probes that cover over 1300 control dimensions to ensure each component meets strict Porsche Classic quality specifications.