05-28-2019, 09:54 AM
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Senior Member
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Join Date: Mar 2017
Location: ABQ, New Mexico
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The actual displacement of Ford's Boss 429 was not 429 CI. It is 428 CI. This was the second time Ford "rounded up" the C.I for one of their racing engines. The other was the 427 which displaced 425 C.I..
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