OEM VS. Aftermarket Bearings

[Pushit2.0]

I thought the 4g63 cranks were cast, and I have looked all over the net, Only to find ither they are cast or forged. There are a number of people saying both for the 4g63/4g64, ither forged or cast. I hit a cast crank(spare 3/s crank we know is cast, and a spare DSM crank) lightly with a hammer and they sound almost the same. Then we tried Ryans forged 3/s crank and that was a higher pitch ring. Also the casting or parting line in the crank is another way to tell. A cast crank has a thin or "sharp" ridge to it and a forged crank has a flat and wide parting line. So ither way the DSM crank is good for all the power the block can handle, if its forged or not.

~John