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Original Message
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Get it sonic checked or.... |
By Royce Peterson - 03/30/2005 3:45:26 PM; IP 66.161.212.27 |
Knock out the freeze plugs - all of them - and see what the largest size drill bit is that will fit between the bores. Then measure the distance on the outside. Subtract and you will know the wall thickness X 2.
If there is no A or C on the back of the block it is probably not a 428.
Royce |
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