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Old 11-24-2003, 09:48 PM
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sbc cast crank

Hey i am building a 350 chevy that turns around 6000 rpm and i dont have enough money to buy a forged crank i was wondering if i could get away with one of those eagle cast steel crankshafts this engine isnt for racing its going in a street car

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Old 11-24-2003, 09:51 PM
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You can spin a stock chevy crank to 6 grand all you like. Remember, the old 283 and 327s saw 8 grand on drag night and stayed together fine. ( not that i'd take a stock crank to 8 anymore, but lots of folks used to)
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Old 11-24-2003, 09:51 PM
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a basic stock cast iron crank will work just fine, and would be a lot cheaper.
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Old 11-24-2003, 09:57 PM
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I know a guy with a 2 bolt main, cast crank, stock rodded 350. This motor has 11:1's a pretty big cam and the basics probably close to 450hp. When I ride along with him he scares the hell out of me running this motor soo hard he ran it to 9000 one time and it bent a pushrod but in a couple hours and some used parts later we had it running again. Stock bottom end turning 9000 didn't break. Has anyone here actually twisted a crankshaft in half is so how did it happen?
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Old 11-25-2003, 06:14 AM
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I broke an old 265 forged crank once, but I think it was an oiling problem.
The small journal 283 and 327s were all forged and could rev high. My current 383 and 406 are cast and aren't high revvers and I don't tempt fate. At 5,000, I'm past my power point anyway.
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Old 11-25-2003, 06:51 AM
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Yep. And at 192 bucks, its a deal!
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