long vs. short headers? - S-10 Forum
 
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post #1 of 11 Old 11-12-2003, 06:09 PM Thread Starter
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long vs. short headers?

what are the pros and cons?

im planning to rebuild my 91 4.3 and was wondering which to get. i have my eyes set on hedman #69400.

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post #2 of 11 Old 11-12-2003, 06:23 PM
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as far as i know, there are no true long tube headers for a 4.3 the long tube increase torque and hp, and the shorties increase hp at the expense of torque. or maybe i have that backwards....

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post #3 of 11 Old 11-19-2003, 09:57 PM
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You want more low end go with short headers, more top end with longer headers...

98 4.3 5 speed, K&N, Flowmaster Exhaust, Short Throw Shifter, 255/60's all the way around, Bucket Seats, efan
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post #4 of 11 Old 11-19-2003, 10:37 PM Thread Starter
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is that hp or torque?

Philip

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post #5 of 11 Old 11-19-2003, 11:42 PM
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HP

98 4.3 5 speed, K&N, Flowmaster Exhaust, Short Throw Shifter, 255/60's all the way around, Bucket Seats, efan
Spark Plugs, and wires to come


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post #6 of 11 Old 11-19-2003, 11:43 PM
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its a trick used by nascar, short headers on the short tracks, for more low end, and longer on the superspeedways, more top end, can be a difference of about 15-20 hp depending on how many inches difference in the length

98 4.3 5 speed, K&N, Flowmaster Exhaust, Short Throw Shifter, 255/60's all the way around, Bucket Seats, efan
Spark Plugs, and wires to come


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post #7 of 11 Old 11-19-2003, 11:56 PM Thread Starter
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ok what is better for torque?

Philip

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post #8 of 11 Old 11-20-2003, 08:38 AM
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I'm not to sure about torque....I'm more concerned with my get up and go rather than my pulling power, I have a duramax if I need to pull stuff....but i would assume that headers either way will give you an increase over regular exhaust manifolds

98 4.3 5 speed, K&N, Flowmaster Exhaust, Short Throw Shifter, 255/60's all the way around, Bucket Seats, efan
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post #9 of 11 Old 11-21-2003, 12:14 AM
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If you end up wanting the Hedmans, I've got a brand new set of long tubes, part# 69400, sitting in the shop that have never been installed. PM me if you're interested.
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post #10 of 11 Old 11-21-2003, 02:37 PM
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Shorties - Less weight, better low end torque and some mid with a lil high end.

Long Tubes - SOTP through the WHOLE range. BUT, about twice the weight...hah, maybe not that much, but quite a bit more. Also, LT's usually have less ground clearance.

Hope it helps!

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post #11 of 11 Old 11-21-2003, 06:11 PM Thread Starter
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i decided to go with the hedmans.

Derrick- thanks for the offer but i already got some off of ebay

and thanks for the info guys

Philip

91 Sonoma
rebuild on the way....

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