1 3/4 headers or 1 7/8 headers?
08-17-2014, 10:34 PM
#1
Staging Lane
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1 3/4 headers or 1 7/8 headers? I have been looking into headers recently for a buddy of mine. Ws6 with full bolt ons and dominator 2 camshaft. He's planning on adding heads and possibly forced induction. Looking for some opinions. 1 3/4 I hear is good for full bolt ons while 1 7/8 for higher cubic inch motors or forced induction. I'm sure this has been beaten to death.. what would you do? he already has kooks 1 3/4 headers , is it necessary to go to the 1 7/8?
08-17-2014, 10:38 PM
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I would definitely get the bigger primary headers. Full exhaust was the first mod I did on my car and I had big plans for the future so I went ahead and got 1 7/8 headers. I'm sure the smaller ones would have worked but there's no sense in buying something you're just going to have to replace down the road.
08-18-2014, 05:52 PM
#6
Keep the 1-3/4 if he has them and they are installed. He is leaving potentially 10-20rwhp on the table NA and even more boosted.
We need a giant sticky in neon flashing letters: 1-7/8 or 2" headers for my car? 1-7/8" would be the choice for stock/bolt-on, heads/cam, small boost, and smaller strokers while 2" is better for big cubes and big FI. 1-3/4 isn't worth it.
We need a giant sticky in neon flashing letters: 1-7/8 or 2" headers for my car? 1-7/8" would be the choice for stock/bolt-on, heads/cam, small boost, and smaller strokers while 2" is better for big cubes and big FI. 1-3/4 isn't worth it.
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08-18-2014, 10:35 PM
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Keep the 1-3/4 if he has them and they are installed. He is leaving potentially 10-20rwhp on the table NA and even more boosted.
We need a giant sticky in neon flashing letters: 1-7/8 or 2" headers for my car? 1-7/8" would be the choice for stock/bolt-on, heads/cam, small boost, and smaller strokers while 2" is better for big cubes and big FI. 1-3/4 isn't worth it.
We need a giant sticky in neon flashing letters: 1-7/8 or 2" headers for my car? 1-7/8" would be the choice for stock/bolt-on, heads/cam, small boost, and smaller strokers while 2" is better for big cubes and big FI. 1-3/4 isn't worth it.
08-19-2014, 02:52 PM
#10
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Keep the 1-3/4 if he has them and they are installed. He is leaving potentially 10-20rwhp on the table NA and even more boosted.
We need a giant sticky in neon flashing letters: 1-7/8 or 2" headers for my car? 1-7/8" would be the choice for stock/bolt-on, heads/cam, small boost, and smaller strokers while 2" is better for big cubes and big FI. 1-3/4 isn't worth it.
We need a giant sticky in neon flashing letters: 1-7/8 or 2" headers for my car? 1-7/8" would be the choice for stock/bolt-on, heads/cam, small boost, and smaller strokers while 2" is better for big cubes and big FI. 1-3/4 isn't worth it.
https://ls1tech.com/forums/generatio...-liter-18.html
I'd say stick to 1 7/8's for most all N/A setups.
Exactly what I was thinking, even replacing Kooks with Kooks. Buy new ones for $8-900 sell the old ones for $3-400. People spend more than that all of the time to gain 10-20hp.
