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Old 12-24-2011, 09:09 PM   #1
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351 heads

I am wondering if I get a 289 bore it out to 302 can I still put 351 heads on it ?

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Old 12-25-2011, 02:24 AM   #2
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Shouldnt have to bore the 289 to get a 302, and yes you can still use 351 heads.


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Old 12-25-2011, 06:33 PM   #3
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All you need to make a 289 a 302 is the crank. 302 has a 4" bore with 3" stroke. 289 has a 4" bore with a 2.75" stroke. You can put 351 heads on it but you'd be better off getting a set of after market heads. A set of cast iron gt40 heads can be found relatively cheap and would give similar performance gains to a set of vintage 351 heads pre-1971.
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