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Original Message
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390 doesn't = 428 |
By Paul M - 10/18/2001 12:17:47 AM; IP 24.20.44.11 |
Not very often, anyways. More than likely you'll be lucky to punch it out .060 over, let alone the .080 you'ld need to get to 4.13 for a 428.
On the flipside, many of the D4TE truck blocks (360-390 have same bore) seem to have been cast a bit heavier, and can safely take the 428 bore.
Some of the earlier blocks, (ie: `60's 390's) might go to 4.13, but, bottom line, get it sonic checked, and make sure you have a good wall left over after boring. |
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