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Factory GM Headers???????????

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Old Feb 5, 2007 | 02:26 PM
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Default Factory GM Headers???????????

Purchased a beautiful 81. It has what i'm told are factory GM shorty headers. My other 80 C3 had been cast iron ram horns.

Anyone know if this was in fact an option or regular equipment on 81's? or is this an aftermarket piece that was put on?

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Old Feb 5, 2007 | 02:44 PM
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The short tube type manifolds were standard in 81. They are better than cast iron logs but not much. They did it for weight savings.
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Old Feb 5, 2007 | 02:49 PM
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Fact. However, after removing them twice to re-weld stress cracks, I elected to install rams-horns. They were not built/designed very well.
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Old Feb 6, 2007 | 07:57 AM
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THanks guy's for the quick response, one more thing, do you know if they are the same physical size as the ram horns? Regarding where they dump, as i want to put side pipes in this car and i know they fit right to the ram horns. Am I looking forward to a re-work or will they bolt right up.
Frank
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Old Feb 6, 2007 | 10:20 AM
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Originally Posted by frank24
THanks guy's for the quick response, one more thing, do you know if they are the same physical size as the ram horns? Regarding where they dump, as i want to put side pipes in this car and i know they fit right to the ram horns. Am I looking forward to a re-work or will they bolt right up.
Frank

I dont think so, I'm pretty sure they dump lower than a ramshorn does.
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