Thread: Best cast iron heads for 428 street build
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Old 04-14-2021, 02:03 PM
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racerboy racerboy is offline
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Join Date: May 2003
Location: Great State of NJ
Posts: 2,077
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Just before the first cam lobes, you can see the a stamp that says
540
233


On the back part of the cam it says F2


Any idea what this means?


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