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Old 01-18-2003, 11:18 AM
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mpbiv mpbiv is offline
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Join Date: Sep 2001
Location: Ocoee/FL
Age: 41
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Ok I finally got to DDG (only a few minutes later) so here are two quotes I took from the turbo database under the shortblock section:

Quote:
A forged crank might not be a bad idea in an early block application that's close to/over the 250 hp mark but this is only postponing the inevitable failure of the crank or main cap due to block twisting.
Quote:
In 1989 Chrysler introduced the common block engines- As the name implies all engines used the same casting and changes were made during machining based on what the casting was going to be used for. 12 pounds of extra material was added to the base of the block in the form of stiffer bulkheads and larger main caps to increase structural rigidity. A common block is a must for any engine making over 250 hp for any length of time otherwise broken main caps or crankshaft will be the result
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