1st Gen. Ram - All Topics Discussion for all Dodge Rams prior to 1994. This includes engine, drivetrain and non-drivetrain discussions. Anything prior to 1994 should go in here.

1st Gen blocks

Old 07-07-2019, 07:40 PM
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1st Gen blocks

What year blocks are interchangeable with the 1993 5.9 block? Im thinking about slowly building a replacement, so when the time comes, Ill have a fresh replacement ready..
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Old 07-08-2019, 09:36 AM
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Just the lower end block is the same '89-'98.0.
If you also mean with the head on it as well, then the head is different '89-'91.0 than the '93 head.

In '94 the injection pump and injectors change, so the later heads would need the injectors swapped.
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Old 07-08-2019, 09:37 AM
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Oh and if you need a Cummins 12V motor, I have dozens of them in my shop.
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Old 07-08-2019, 10:30 AM
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Oliver, how's it going? I recall something about a Brazilian casting that was inferior, is that true?...Mark
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Old 07-08-2019, 10:47 AM
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It is going great!
Yes there is a Brazilian block known as the 53 block.
I usually see them on the 24Vs.
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Old 07-08-2019, 10:15 PM
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Originally Posted by oliver foster View Post
Oh and if you need a Cummins 12V motor, I have dozens of them in my shop.
Nice supply Oliver. I may take you up on it. Ideas on prices? A complete head and block suitable to rebuild is what I kicking around.
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