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Big Block Break in Period Big Block Break in Period

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Old 03-19-2009, 11:12 AM
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Ldicanzio is an unknown quantity at this point
Big Block Break in Period
I recently bought a 454 crate motor from GM for my 69 Chevelle. The guys at GM said I can use 10w-30 motor oil to break it in. I have about 2000 miles on this motor and it uses a quart every 1000 miles. Does this sound right? Should I have used another vecosity oil to break it in? Maybe 5-20?

Thanks,
Lou
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