Thread: Chevy Big Block ID Help
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Old 10-24-2008, 07:50 AM
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Default Re: Chevy Big Block ID Help
It's probably a 3969854 396/402cid block that was used during the 1969-70 model production based on the casting date.
Both of your blocks were available in 2 or 4 bolt mains.
Make sure to check.
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