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how to tell a 53 block?

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Old Nov 28, 2006 | 12:41 PM
  #1  
tufamc's Avatar
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From: Traverse city,MI
how to tell a 53 block?

Hi all

My good buddy has a 2000 3500 ctd w/5 speed and we were wondering how to tell if one has a 53 block. Lots of post about them but none to clear on why they are bad. Help us out please!!
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Old Nov 28, 2006 | 12:55 PM
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From: Los Angeles, CA
53 blocks are Brazilian made blocks found in some 1998.5 to about 2001 24-valve Dodge trucks (some late 12-valvers had them too). These blocks suffer from a manufacturing defect which causes the blocks to crack and subsequently leak coolant. The crack occurs on the passenger's side, under the freeze plugs.

Look at this site, it has good info and good pictures:

http://www.stamey.info/Truck/Cummins53BlockFAQ.htm
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Old Nov 28, 2006 | 01:11 PM
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From: New Castle,Pa.
DL1221 summed it up pretty well,,,good info DL
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Old Nov 28, 2006 | 01:42 PM
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From: Traverse city,MI
thank you for the link, well have to look tonight!
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Old Nov 29, 2006 | 08:23 AM
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I've seen three "53" trucks this week. all over 100K, none with cracks.
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Old Nov 29, 2006 | 08:40 AM
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I've got 140K on mine with no signs of cracking.
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