Hi.

would you guys say that the hawks headesr would be worth 1800 dollars shipped inlc taxes to sweden for the extra power /torque gain (if their are any?) hur much power /torque can i excpet on a stock ls1 / ls2 engine. i haven´t decided wich engine i´m going with yet

 

nobody that knows?

 

If you have a chance , take a look at "Racing innovation" 82-92 Thirdgen ls swap headers. well worth the price of 300

 

Im gonna look in to that then. Decent price anyway. Do you know how the quality is?

I am very curious,but is it anyone jere that have done a dyno test with stock manifolds and hawks headers?

 

I have the early 1-5/8 version of them on my daily driver. no issues for the 24k miles i have on them. I have a small cam but it made 358whp. I have the later 1-3/4 set for my 87.

 

That sounds good. Do you know how the is quality compared to hawks headers?

 

You get what you pay for. 1 3/4" seems small to me. These motors respond well to exhaust side porting and headers.
I recommend Stainless Works or Kooks. I have the 2" SW headers sold through the person you mention.
I have a stock LS2 and asked for a zero knock retard tune. If I wanted to brag on the net, I could have turned it up just to meet a number. Look at the plateau - no peak and fall-off at the end. Lots of room for h/c/i improvements. Final number was 382 rwhp, and tuner said the knock sensors were very sensitive.

 

If those numbers on the dyno is with hawks. That must be very good? Do you have a. Link for kooks or stainless works headers?

 

Have you looked into the Hooker stainless 1 7/8" design? Lower price than the Hawks/SW. Better overall finish with the welding, velocity spike and merge collector. Which the SW design doesn't offer.

 

any particular hooker headers you refering at?i don´t know any more lsx swap headers except hakws. and thoose who have mentioned in this thread. how do i know which would work?

 

http://ls1tech.com/forums/conversion...l#post18918332
They also have a post somewhere on here about them.

Also to go with the bigger is always better header debate. Here's another link that shows other results.
http://onthedyno.com/GM-LS-motor/art...s-1-78-sc-376/

 

have anyone tried these headers? i suppose it is this you meant? are they in better quality instead of hawks?

http://www.hawksthirdgenparts.com/ho...3-0-collector/

 

I have a set along with a set of Hawks SW 1 3/4. The hookers fit amazing along with a better finish out of the two.

There's other places that offer them cheaper. I believe I paid $1300 shipped with engine plates, and oil pan. I tried fitting the headers with both style mounts(Hooker/spohn) and fit amazing with both.

http://www.ws6project.com/user_stor/...oducts_id=7331

 

Do you use a f body oil pan?

 

I purchased the kit with the Holley pan so I wouldn't have to do any cutting. Pan also works with the spohn mounts. No notching needed.

 

Okay. Do you think it would be a clearence issue with a f body oil pan?

 

With the crossmember I believe so. Unless you get mounts that push the engine closer to the firewall