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.

 

seriously, this has been beaten to death

 

Just look at this
https://ls1tech.com/forums/generatio...o-results.html

 

I plan on going to a 1 7/8 Header..it will help me up-top.

 

i would persinaly go with 1 3/4 especially on stock cubez.

 

I went 1 7/8 Kooks but am planning on going with a larger motor in the future, dont know if it hurt me but I'm happy so far

 

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.

 

Id go with 1 3/4" myself. Dyno numbers arent everything, theres drivability to concider also.

 

well searching would be just cherry....if every ls1 was set up the exact same...

 

thanks guys

 

Someone doesn't read - stock 01 motor with a FAST intake, no heads or cam. Said it right there in the thread.

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.

 

1 7/8 here. good power, plus they dont look like noodles hanging off of your cylinder heads like smaller ones do.

 

thanks guys