Wanting to run a alternator on my car problem is I have a mandrel for the crankshaft but its too long. Has anyone ever used this Moroso alternator bracket with a stock bbc crankshaft pulley if so what one will work with this bracket. single , double , triple groove.

You can cut the mandrel down and make it as short as you need,just need a different bolt-stud. No experience with that bracket.