Blank Crankshaft forging
#2
Thats a very interesting question. I don't know about buying it from Porsche , but could you image all the interesting little tricks you could do if you found the supplier to Porsche. For instance valeo,behr and some other companies are the worlds radiator supplier. Lobro makes the cv's .Who makes the cranks for the automakers. ? Could you imagine a 928 twin fire crank.!!!!!!!!!!!!!!! Tremendous torque !!!!!!!!!!
#3
I talked to an engine builder, and with a blank forging, it can be made to your own specs ie stroke and bearing size. I know that Broadfoot racing had a 92mm stroke 944 crank that they were selling in a motor on ebay.