Thread: 428 max bore
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Old 03-24-2004, 06:18 PM
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jschiller jschiller is offline
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Join Date: Nov 2002
Location: Cape Coral, FL
Cobra Make, Engine: Past owner ERA 146, ERA 694 in progress, 428 CJ, toploader
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I agree with FFR428. . 040 over on a bore and .020 on a crank is fine for a street car up to about 450-475hp. This assumes it was a 428 to begin with, not a bored 390. Beyond that a sonic check is very advisable.

With these blocks disappearing every day, you can't get too picky. Otherwise a Shelby or Genesis block is your only alternative. Mucho more $$$


Good luck.

John
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