Re: OEM VS. Aftermarket Bearings
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
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Moon taxi: 9.45@156.9 mph 41psi 2011... Letting people down sense 2012.
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