Does anyone have any info. regarding the gains of going to a 1 7/8" header from a 1 3/4" header on a 402 with L92's??? Just curious of the swap would be worth the $$$$$$$$.

 

Don't I feel the love. Anyone have any info. on this ???

 

i dont think your gonna find many people who's switched from 1 3/4 to 1 7/8 as most will go 1 7/8 from the start on the l92 setups. and the other fact that this setup is still new. honestly id say the 1 7/8 w/ ls7 style (d port) flanges and big collectors from kooks or american racing should show you considerable gains over a traditional ls1 1 3/4 header. but would love to see a dyno comparison for sure. good luck

 

Stick with your 1 3/4". No reason to spend more money on switching and when there is no solid proof of gains.

 

I appreciate the responses, I would like to see the gains as well. I just don't want to spend another 1K on new headers when the set I bought is less than 2 months old. I guess I'll wait to see if anyone else does this and makes alot more HP.
Thanks!

 

How does a regular ls1 header work on the l92 head? Doesn't the l92 have a D port for the exhaust like the ls7? Would think just going to the D port header would be a gain let a lone the 1 7/8.

Nick

 

It is my understanding that the ls1 headers are big enough to cover the D shaped exhaust port. If the header circumfrance is bigger than the exhaust port, should shape matter?

 

what are the best headers for Max HP, ground clearance and price. i wanna spend under a 1G. should i get mids. full length?
my car is lowered and have magnaflow cats with flowmaster catback. not really sure if im gonna do any internal engine work as of yet.

 

plz help..

 

Long Tube Kooks will fit the bill...but a setup with Y-pipe will be somewhat over $1000.

 

Hey MarylandSpeed,

Welcome to LS1Tech.....those Jethots I bought from ya last year are holding up fine.

...sorry for the hijack.

R/

Frat

 

Great question. I am wondering the same thing. Would Hooker 1 7/8 header's fit the L92 port design with out any flow/power problems?

... I've searched and this was the only thread I could find.