Can anyone tell me if the inlet spacing on the heads of the S50/2 US, M52 / S50B32 are the same?
I had been planning my swap around an S50B32, but I recently became enamoured with twin screws, and I am unsure if the T/S system I am looking at will be compatible... as it is for an S52US motor.
Now, the best idea would be to build a low comp M52 with an S50 crank, for 3.1L displacement (if the port spacing is the same as an S52US), but if an S50B32 has the same spacing, i'd rather build a double vanos T/S monster.
Also... a twin screw system does away with the intake manifold and thottle bodies, so would there even be any point to using an S50B32 as a base, as all you'e getting is double vanos and the extra displacement...
Lastly, how big can you go with an alloy M5x block? With the extra weight over the front, it would be a smart play to utilise one, but I am unsure how well they handle boost?
