7.3L Question - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 9 (permalink) Old 10-22-2007, 11:24 PM Thread Starter
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7.3L Question

What's the difference between the 7.3L and the 6L Head bolt and gasket design. What i mean is why do the 6L puke coolant all the time and not the 7.3L. Does the 7.3L just have a better design? I don't know how to word the question so i hope you guys can understand my question. I am just trying to educate myself on these things.

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post #2 of 9 (permalink) Old 10-22-2007, 11:27 PM
 
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6.0's puke coolant all the time because the egr flashes the coolant and boils it over.

the vanes can stick and overboost and lift the heads on a stock truck

aftermarket boost levels are simply too much for stock head bolts and at some point will stretch them.

It's not like the 7.3 can hold over 40lbs safely either.

Although, the 6L headbolts are too few and too small.

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post #3 of 9 (permalink) Old 10-22-2007, 11:34 PM Thread Starter
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OK so the 7.3L had bigger bolts and more of them? The 6L block is smaller and requires less bolts right? But they do not have the sufficient amount of bolts and the 7.3L does. That is my understanding. Please feel free to critisize and correct me

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post #4 of 9 (permalink) Old 10-22-2007, 11:34 PM
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Yup, what Gregey said... not enough head bolts and a turbo capable of 30-38#'s with nothing more then a programer... add the EGR to that and there ya have it...

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post #5 of 9 (permalink) Old 10-22-2007, 11:37 PM
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The 7.3 has much lower boost and CP issues then the 6.0....

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post #6 of 9 (permalink) Old 10-22-2007, 11:40 PM Thread Starter
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Ok i'll just leave it at that. I'm far more confused then when i started

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post #7 of 9 (permalink) Old 10-22-2007, 11:54 PM
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Quote:
Originally Posted by circle5
Ok i'll just leave it at that. I'm far more confused then when i started
cofused about what? They put it plain and simple!

early 99 with some stuff on it
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post #8 of 9 (permalink) Old 10-23-2007, 12:07 AM
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don't the 6.0's have aluminum heads as well. i always thought that was part of the problem because the aluminum in the heads expands at a different rate that the steel in the block as the engine temps come up causeing the gasket seeling serfices to constantly be moveing.
That was just my guess I don't have anything to back it up with:deal:

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post #9 of 9 (permalink) Old 10-23-2007, 12:31 AM
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No the 6.0's dont have alum. heads. The only one I know of that does is th D-Max

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