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Old 03-19-2007, 11:30 PM
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Headers????

Okay so now alot of my posts will be on the malibu cause it's turning more into my project then my dad and i's so anywho here is the quesitons.

Long Tube Headers?

or

Shorty Headers?

and then what brand would you all recommend. and for all of you who might not know its a 78 malibu with a 350 crate

thanks everyone
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Old 03-19-2007, 11:45 PM
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Plan on lowering it? Then do shorties or mid-length.
Don't plan on it? Ah hell, go long tubes then.

Long tubes produce more power. The tubes are specifically tuned to promote scavenging of exhaust gases, which allows for superior flow over short, mid, or standard manifolds.

Shorty headers give a good power gain, but only due to reduction of back-pressure for better flow, not scavenging.
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Old 03-19-2007, 11:49 PM
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Originally Posted by TorqueDog
Plan on lowering it? Then do shorties or mid-length.
Don't plan on it? Ah hell, go long tubes then.

Long tubes produce more power. The tubes are specifically tuned to promote scavenging of exhaust gases, which allows for superior flow over short, mid, or standard manifolds.

Shorty headers give a good power gain, but only due to reduction of back-pressure for better flow, not scavenging.
What he said.
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Old 03-19-2007, 11:53 PM
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what if it was only like an inch drop? we would be running same size of tires in the front if that makes any difference
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Old 03-19-2007, 11:54 PM
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sorry if i sound retarded this is a learning process for me too!
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Old 03-19-2007, 11:57 PM
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unless its an ls1, headers are useless.
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Old 03-19-2007, 11:58 PM
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well we already tosted the manifolds so it needs them.......
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Old 03-19-2007, 11:59 PM
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I'm not sure what your current ground clearance is, but it's generally best to drop very little, if even at all, when running LTs.
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Old 03-20-2007, 12:00 AM
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okay so i think i got it but what brands?

anyone?
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Old 03-20-2007, 12:01 AM
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Originally Posted by Mikerock
unless its an ls1, headers are useless.
Wrong.

If you take a stock LT1 and a stock LS1, and slap a set of shorties on both, the percentage of performance gains seen are GREATER on an LT1 than an LS1. This is due to the absolutely horrid design of the LT1 manifolds, making them very restrictive. They are called "log manifolds" for a reason.
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Old 03-20-2007, 12:24 AM
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Get longtubes... sound much better, and more power. enough said. And they look cooler.
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Old 03-20-2007, 12:26 AM
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BRANDS???? is dynomax any good?
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Old 03-20-2007, 12:50 AM
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pacesetter, hooker depends on clearance tho... I dont know any specific fits for 78 malibus. But I know those brands sound nice
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Old 03-20-2007, 01:51 AM
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Edelbrock, Hooker, Mac, just research some exhaust setups for a 350 crate... chances are, you can get the headers to fit in a car that age no problem.
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Old 03-21-2007, 12:47 AM
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Originally Posted by TorqueDog
Wrong.

If you take a stock LT1 and a stock LS1, and slap a set of shorties on both, the percentage of performance gains seen are GREATER on an LT1 than an LS1. This is due to the absolutely horrid design of the LT1 manifolds, making them very restrictive. They are called "log manifolds" for a reason.
Now im pretty sure im correct, because not only have i done them, but i have dynoed them afterwards. Most importantly an 02 ss we had did headers made a whopping 1 hp more than it did with stock. don't buy headers for you ls1 unless you want it to look cool.

ls2's are a diffrent story, i did headers on an 03 GTO, iand it made about 50 more HP.
like i said, headers on an LS1 are worthless.

looking at it i think i may have typed it unclearly, torquedog i completly agree with you i was saying headers are a good investment unless you own an ls1.
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