stock 4.6 crankshaft
 

How much HP can a stock 4.6 2v crankshaft handle? Is the stock crankshaft on a cobra better? Is the cobra crankshaft anymore different from a 2v motor?

cobra cranks have 8 bolt flanges, most GT cranks are 6 bolt. Power capacity is more than you'd want in a street car for either. If you're doing a build, use an 8bolt.

Cobra's are made from forged steel as oppose to cast iron. For piece of mind, I'd go w/ the forged piece. Used ones can go for around $100 if you look hard enough.

stock is safe up to 400hp and the forged are good up to 800 right?