1 7/8 or 1 3/4
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Joined: Feb 2009
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From: Geneva, IL
1 7/8 or 1 3/4 anyone want to share their opinion....car should be making around 440whp 420ft through a 4l60E....gonna get new headers down the line and curious which ones to go with....3/4 make more down low i think? 7/8 make more up top i think? but for my specific power range which would get me down the track the fastest with a 373 gear? thanks
Do you have a higher stall converter? Another option that would be the best of both worlds would be to get stepped headers. 1 3/4" stepped to 1 7/8. You get the torque through the midrange and the power up top.
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Just look at this
https://ls1tech.com/forums/generatio...o-results.html
https://ls1tech.com/forums/generatio...o-results.html
the engine used for this testing was not stock, and compared an old design 1 3/4 to a new design 1 7/8 header. i do appreciate them testing there products i felt it was misleading on some facts. they used a different cam, heads and intake from stock, for a daily driver i would go with a good set of 1/34 on a STOCK engine.
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the engine used for this testing was not stock, and compared an old design 1 3/4 to a new design 1 7/8 header. i do appreciate them testing there products i felt it was misleading on some facts. they used a different cam, heads and intake from stock, for a daily driver i would go with a good set of 1/34 on a STOCK engine.
I put 1 7/8 on my old stock motor and it was beautiful. Properly tuned, 1 7/8 gain more everywhere on an LS motor.
I went with 1 7/8 on my G8. Didnt see any loss of power compared to those who went smaller 1 3/4. also went with bigger for the future mods. I know not same engine but thought i share.
Last edited by ohioborn80; Mar 15, 2010 at 05:48 PM.
