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Go Back   Dodge Cummins Diesel Forum > 2nd Gen. Dodge Cummins 98.5-02 24V Forums > 98.5-02 Powertrain
98.5-02 Powertrain Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission Ect..NO ADVERTISING .

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Old 12-28-2006, 11:32 PM   #1 (permalink)
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55 block

I noticed another member has this in his sig. What is it? I know about the 53, but how bout some infor on the 55? Where would you find it stamped. I am starting to shop around for a 2nd gen and would like to have all the info I can.
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Old 12-28-2006, 11:41 PM   #2 (permalink)
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I have a 55 block. It is printed on the bottom of the block about middle ways front to back next to the oil pan on the drivers side. It supposedly is one of the thicker blocks. I think the 55 was cast in Mexico but not sure? I think I've heard somewhere that it has a little different mixture of metals than the 53.
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Old 12-28-2006, 11:47 PM   #3 (permalink)
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yea the 53 blocks were never meant for a hp application much over 100 I believe...amazing to think of these engines only making that little amount of hp. 55's are good. You will see the number on the side of the engine block, can't remember exactly where...if you climb under like you were changing the oil filter and look up w/a light you will see it.
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Old 12-28-2006, 11:57 PM   #4 (permalink)
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nothing wrong with the 55 block only the 53's had an issue with cracking
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And thats all i am saying
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Old 12-29-2006, 12:03 AM   #5 (permalink)
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That is odd that they would make a block that was prone to cracking. Wonder who was behind that one and if he can look himself in the mirror anymore.
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Old 12-29-2006, 12:28 AM   #6 (permalink)
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not that they made a block that would crack...just that block wasn't meant for such a stressful application as the ram. Don't know why they put em in the trucks (probably didn't know it would happen)
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Old 12-29-2006, 10:21 AM   #7 (permalink)
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Originally Posted by moneymaker44 View Post
nothing wrong with the 55 block only the 53's had an issue with cracking
You guys blew it................... You had a chance to really make him nervous. You should have told him that it had a worse reputation than the 53 block......... Could have been a lot of fun.
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Old 12-29-2006, 11:12 AM   #8 (permalink)
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They didn't intentionally make 53 blocks thin for low power applications. That isn't the correct story. The 53 just designates what casting was used to make the blocks. The 53 cast had a flaw, and resulted in blocks with thinner walls. It was a mistake, and wasn't realized until thousands of blocks were produced. It wasn't an intentional design, it was a screw up. I think they were case in Brazil, but I could be wrong. 53 = lemon block. Other casting numbers, like 55, are normal and don't appear to be a abnormal problem. Not all 53 blocks will fail, but it is well documented that 53 cast blocks have a much higher rate of failure than normal.

53 block + VP44 + junk LP = headache
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Old 12-29-2006, 11:20 AM   #9 (permalink)
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Quote:
Originally Posted by Duluth Diesel View Post
They didn't intentionally make 53 blocks thin for low power applications. That isn't the correct story. The 53 just designates what casting was used to make the blocks. The 53 cast had a flaw, and resulted in blocks with thinner walls. It was a mistake, and wasn't realized until thousands of blocks were produced. It wasn't an intentional design, it was a screw up. I think they were case in Brazil, but I could be wrong. 53 = lemon block. Other casting numbers, like 55, are normal and don't appear to be a abnormal problem. Not all 53 blocks will fail, but it is well documented that 53 cast blocks have a much higher rate of failure than normal.

53 block + VP44 + junk LP = headache
Thats the story as I understand it.....

More info: 53 Block FAQ and Information

Last edited by Dr. Evil; 12-29-2006 at 11:30 AM.
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Old 12-29-2006, 11:27 AM   #10 (permalink)
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Quote:
53 block + VP44 + junk LP = headache
Thank God that the 2002 came out... Now I've only got...

VP44 + Junk LP = :fist: Not as bad...
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Old 12-29-2006, 01:12 PM   #11 (permalink)
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Ya it was prolly the Doc

He is a trouble maker and all good men should refrain from conversation with him
I think you meant MnTom, Whitmore!
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Old 12-29-2006, 04:38 PM   #12 (permalink)
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I think you meant MnTom, Whitmore!
So now what did I do?
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