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Block Identification

Old Mar 1, 2014 | 12:27 AM
  #1  
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From: San Clemente
Block Identification

I am trying to figure out if my block is the "53". I have read the articles on where to look and have examined the block several times. I have looked below the injector pump and above where the block meets the oil pan and all i found is "4B". On the passenger side, all I found is an "A" stamped on the block. Is "A" a type of block any ideas? Maybe I'm just not looking thoroughly enough. Thanks in advance.
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Old Mar 1, 2014 | 08:20 AM
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I just typed on google "where to look if you have a 53 block" a ton of info out there.

http://www.turbodieselregister.com/f...=cracked+block

COPIED FROM ANOTHER SITE.

If you want to see if your engine block could be one of these dreaded "53" blocks, crawl under the front, left side, and look up at the block on the front, directly under the injector pump (by the PS pump). You should see a large wiring harness mounted to the block. Directly below this, just above where the oil pan meets the block you will look for a "53" cast in the block. The numbers will be about 1 inch tall. See picture below:
Note: I have heard of some cases where the "53" is elsewhere on the block, but I have not been able to verify any other locations or see them. I now have proof of another location where a "53" can be found.

I have now confirmed 2 rumors as fact. The first being that "53" blocks were in trucks with a year model as late as 2001, and the second, that a "53" can appear on the right side of the block also, or instead. The following pictures were sent to me by the owner of a 2001 Ram with a "53" block in it. There are pictures of the right and left sides of the engine.

Passenger side below. You will see that the "53" appears directly below the oil filter mounting assembly, and directly in front of the front turbo drain port in the block (there are 2 on an ISB engine
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Old Mar 1, 2014 | 01:14 PM
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Relax, if you don't see a 1" tall 53 right above the oil pan at teh front left corner you are home free.

What is the first digit in your vin? 1=US 2= Canada 3=Mexico.

No 53 blocks from Mexico. Mexican blocks are marked with random smaller letters and numbers. They are considered the best blocks when it comes to rebuild because of a higher silica content, IIRC.
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Old Mar 2, 2014 | 11:07 PM
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Originally Posted by SIXSLUG
Relax, if you don't see a 1" tall 53 right above the oil pan at teh front left corner you are home free.

What is the first digit in your vin? 1=US 2= Canada 3=Mexico.

No 53 blocks from Mexico. Mexican blocks are marked with random smaller letters and numbers. They are considered the best blocks when it comes to rebuild because of a higher silica content, IIRC.
Yep, I've got a 3 for the first digit of VIN. I had read the info posted above and followed the directions to look for block ID and didnt find "53" so I think it must be a Mexican block. Viva Mexico!

I'm liking my truck more and more! Just filled her up today and got 21.3 MPG over 317 miles of driving, hand calculated. That included 50 miles of hauling 3000 lbs of dirt and quite a bit of city driving, a dirty air filter, and stock exhaust. Incredible.

Thanks for the feedback!
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Old Mar 2, 2014 | 11:22 PM
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Nice!
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