Porsche is now providing brand-new engine components for vintage 911s.

Happy news for owners of Porsche 911 cars produced between 1968 and 1976: the German automaker is now offering brand-new, factory-direct magnesium crankcases.

For F and G series cars with 2.0, 2.2, 2.4, and 2.7-liter engines, including the storied Carrera RS 2.7, these replacement crankcases are available for purchase. In honor of the legendary RS's 50th birthday, Porsche unveiled a limited-edition 911 GT3 RS last year.

Any Porsche Classic partner (dealers with a separate classic area) or a regular Porsche dealership, according to Porsche, can order these crankcases.
Porsche claims that the difficulties owners have been having maintaining their vintage 911s led it to decide to reintroduce this item. Owners previously had to use automobile destroyed components or weld cracks. Given the pressure that a crankcase operates at in the long run, neither option is desirable. The slightest flaw might have disastrous consequences.

The majority of classic 911 vehicles can now have fully new engines built thanks to this reprint, according to Ulrike Lutz, Director of Porsche Classic. The demand from our customers for genuine OEM engine parts like these is high. For earlier 911 models, Porsche Classic is already creating crankcase reproductions.
The aluminum crankcases made for post-1990s automobiles were simpler than this most recent Porsche Classic endeavor. Porsche had to first create blanks, which it achieved by replicating the 962 race engine. Even still, the engineers required assistance understanding outdated drawings that contained production-related data. As a result, it examined Porsche's parts list, its data, and even turned to previous employees for interviews.

Porsche used contemporary production techniques after the job was finished. It provides CAD information to a different provider who does sand casting. After casting, three to four hundredths of a millimeter are removed using more than 50 different cutting, drilling, and milling equipment.

The crankcase is examined by 3D measuring probes that scan over 1,300 control dimensions to make sure it's suitable for a car as significant as the Carrera RS 2.7.
Before giving the new crankcase the OK, they put it through hell because it's a Porsche. The company put a 911 Carrera RS 2.7 on a test bench for several weeks while also fitting it with a magnesium crankcase and various sensors. Porsche engineers sampled the oil frequently while the engine was being tested, and even disassembled the engine afterward. All components were examined by Weissach-based Porsche Classic engineers and specialists.

Since 2013, Porsche Classic has reprinted roughly 200 components per year. They include infotainment system changes to make living with vintage Porsches easier and engine parts like the crankcase discussed here.

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