bought an engine of a prominant engine shop thats been around 40 years.
i paid for a scat forged crank and i think its a cast 9000 series $300 crank.
not happy

this looks like a cast crank,, chinese garbage scat sells

 

It's pretty tough to tell from the photo if the machining removed the parting lines from forging dies or removed the parting lines from casting molds. Since they all begin with a cast billet, it's even tougher to tell. Unless there are other hints in other areas of the finished crank, about the only way I know to determine with any certainty would be to cut off a piece and perform a micro crystaline structure analysis under a SEM - And then you'd be buying a different (whole) crank anyway. Since the alloys used can vary a LOT in the aftermarket, other types of testing might be useless and even the structure analysis could be confusing.

 

i was thinking the shape of the flange may be a clue,, the engine guy i have here showed me a forged Sbc scat crank and it had a different shape.

 

That's just a 2 piece rms crank in a 1 piece rms block.
crank could be whatever soley based on that.

 

Shape is meaningless.

Only way you're going to know is to find a part number number on it.

GD

 

I have a Scat cast crank in my Ford 408W. It has a part number engraved in the front counterweight. If you are concerned, pull the oil pan and have a look. Mine looks like this, I assume a Chevy crank would have similar markings.

 

I will drop the sump and check,, engine looks like its full of cheap crap. but the shop are reliable and reputable,,,,i am looking tomorrow.