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Feedback on people installing Stillen Crank Pulleys

Hate to break the news to you. I broke a forged crankshaft on a 1970 Chevy LT1 with a four bolt main. 2 months after I installed a lightweight pulley

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Old 08-11-2017, 10:45 AM   #8 (permalink)
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Hate to break the news to you. I broke a forged crankshaft on a 1970 Chevy LT1 with a four bolt main. 2 months after I installed a lightweight pulley years ago. It broke right behind the first main. You are right about quicker response of the motor. I have installed the ATI dampener on my Z. It's smoother then stock. Motor responses about the same as stock. With the way the oil pump is on the Z. I don't want to take a chance on it failing from high rpm use, like on the track.
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