Is the 3.4 and 3.6 based of the 3.2?

[blue2000s]

Originally Posted by Topless

The GT3 and Twin Turbo share a 3.6L based on the old 964 block.

The engine on the TT, GT3, GT2, GT1 race car and 959 are all related and date back to before the 964. They are actually evolutions of a design that started with the 904 and 962 in the mid-60s.

I think that line ends next year though, I believe I say that Porsche announced all the engines in the new 997s will be based on the same block.

All the other 986, 987, 996, and 997 engines from 3.2-3.8 liters share the same block with different cylinder bores. The heads from different displacements and different years vary greatly.