i have a 91 firebird with a 383 as of now it has 1-5/8 shorties with a custom y-pipe into 3" exhaust . for my 355 it served great but i believe this is a huge cork in my performance. Brent Frasier (local engine builder and most of all John Gullets crew chief ) told me to try 1-7/8 primaries well i want a bigger motor down the road so im looking at 2" primary headers as well does anyone on here have a set of either if so who made them, how big of a pain was it (not that i care ill pull the motor if i have too) and how do they seem to perform. thanks in advance

 

you don't need 2" for any street small-block.

 

no offense but i wasnt asking what size i needed im looking for a good source for big tube headers. and Id say if i buy brents 434 that dynod 1100hp on one small kit (it has two the other being the fogger with much larger jets in it) it might just need some big headers what do you consider a street car this isnt my daily driver just something i might drive to a cruise in and trailer to the track any help is still greatly appreciated

 

you would be looking at a adapter plate, and then custom headers.

not only does no one make them that big, but the exaust bolt pattern would interfere with the tubes.. so you need a adapter plate that uses flush mount bolts to mount to the head, and the plate has a larger bolt pattern for the header.

very pricy stuff.

 

yeah ive used those style on a 408ci mustang were a pain at first but they were worth it because the car runs hard now but i havent found many companies other than stahl that make such headers for third gens and like you said they are expensive

 

all the big names make headers, but the largest you can get off the shelf are the hooker super comps...

after that, you're looking at custom headers.

 

i coulda sworn hedman made 1 7/8" sbc headers that where off the shelf, you need the adapters, and have to relocate your oil filter and run a mini starter. but i thought you could buy them through jegs or summit. need the part/number, you can get that from hedman's site.

 

You might want to check out these two companies:-
Lemon Headers
http://www.lemonsheaders.com/products.htm

Stahl Headers
http://www.stahlheaders.com/

If you decide that you are going to get/build a SBC that needs 2" primaries then to be honest you shouldn't be asking how big a pain it will be to fit them. It will be a major pain and will probably involve several of the pipes running through the inner fenders.

If you're considering getting a 1100bhp engine from Brent Frasier, then why not just get him to sort out the headers for you at the same time.

Hope the links help you out!

 

Heres a pic of one of the type of headers you can get from Stahl for thirdgens with SBC's.

They do various types of headers from 1 5/8 to 1 3/4 step all the way up to 2" primaries. Just plan on tubes number 7 and 8 going through the fenderwells.

 

I wouldn't get any headers going out the wheel wells. Ihave 2 1/8inch headers on my chevelle and it gets in the way when u make a sharp turn because your tires start to get hot.

 

thanks everyone the stahls look like the baddest set i have found i knew there would be work just wanted to see how much thanks again by the way who is the guy with the 434 small block on this board

 

that guy ur talkin about is BADDEST305 if thats the person your thinkin of. white 91 z28? i think he has those same headers pictured there, becuz he has the tubes goin thru the fenderwells.

 

thanks tim thats the car i was talkin about man now how do i get my engine compartment that clean

 

i have a set but i guess thier too big for ya

for a tall deck big block, 2 3/8" stepped to 2 1/2" with 4 1/2" collectors, made by lemons.....now thats some big headers

 

Hedman makes a 1 7/8" primary tube header for our cars that comes with adapter plates, i think they are in the $500 neighborhood.

 

Hooker 2322...extremely hard to find but if you can, they are worth it. 1 7/8 primaries and they stay inside the fenderwells.

 

i run a set of these, great header and there was a little bit of trimming required around the a-arm lips to get them in there, nothing a angle grinder didnt handle. they had 3 inch collectors and were really great

 

I have a set going on my race car. Do you have any pics of them installed? I would like to see. I think they are 3.5" collectors, are they not?

 

Also, did you have to run a remote oil filter?

 

nope, everything fit good , no probs

 

either 3 or 31/2, i had a 3 inch y pipe made to them so either way i was only going 3"

 

jeez guys your looknig for headers with primaries as big as mine

 

These are the Heddman Hustlers my buddy is running on his ATI SC 421cid. 1 7/8" pri 3.5" collectors, no need for oil relocater either with these if you use the short filter.

I wanna say these come in 2" primaries also? been awhile since he put them on and we talked about them. Either way I dont envy his plug changes with the charger on there LOL!! but he's running 9's already and has'nt done anything but played with jets/bigger needle seats so he's looking to be low 9's when it's all said and done. Currently working on his brakes LOL- stock stuff is a little weak when going that fast with a short shut down

 

I am in the same boat as all you guys. I have victor junior heads, with large ports. I would like to run 1 7/8" if I can, but these Jegs one seem to be the only logical solution. Their price is OK, if they work good. My car is street driven though, so ground clerance and fitment issues are important. Going through fenders is not all that cool, but....

so, these headman hustler 1 7/8" go through fenders or not? Thanks guys.

 

They're all in the engine bay, trying to remember if you have to go around the steering shaft though, which really is'nt an issue but would be nice to know.

He's got just as much ground clearence with the Hustlers pictured as I do with the super comps. Think i would price having them ceramic coated through Heddman before I bought them, sometimes it's cheaper than buying the headers and then shipping them off to Jet-Hot.

 

Cool, thanks for the info. I think the headmans are a good idea.... there is a place here locally that does ceramic coatings...not too bad a deal actually. I can get my truck and car headers done at the same time.

 

I am calling your bluff on this one. I just tried to put mine in with the motor today and I have to whack a big hunk out of my K-member to get them to fit. Pics plz?