I have a 383 stroker mild built and i was wondering what size exhaust i should run and what company .... can i get some suggestions, i have heard i should run 3in exaust .... ??
Run it off the headers :hi:. 3 is to small, try 4 :smoke:
Thats what i want to do with my truck while working on it (take off exhaust and run it with just headers) lol. Piss the neighbours right off when running it :mrgreen:
Thats what I do with my Mustang :smoke:
Well i dont know what it'll sound like whenever i finally get it running (havent done anything with it yet), 350 sbc that hasnt run in 1.5-2 years. I guess we'll see lol.
i'm sure it'll sound awesome with whatever you put on it. do you want it loud, rumbly, growly? what are you going for?
Valve events please? Peak power?
Do you get Pacemaker there?
im sure you have heard to use a 3 inch exhaust for a few reasons. first off 2 1/2 is just too small for a 350 in my opinion. and 4 inch (while it would sound awesome) can get a lil hard to getted routed underneath. most cars just dont have a lot of clearence for exhaust pipes. so thats why most people say go with the 3 inch, itll sound good yet isnt so big to where you cant snake the pipe around underneath to get it where you want
by the way, what car is it going into?
trick flow said that 2-1/2" should be fine for the 500hp 400 i'm currently building...
Go with Flowmaster Super 40s :thumbs: Thats what I use on my Mustang. Or just run it off headers.
that's what we're using on the 400. how do they sound compared to regular 40's? i've got those on the dodge and the truck...
They sound great. A little louder and deeper sounding. Theyre also supposed to give 5-10 more horsepower than the 40s depending on your application.
I dunno about a 4 inch. Might not be enough back pressure.
...that's kinda what i think about the 3", personally. when i worked at a muffler shop, we had all kinds of hill-rods coming in, wanting 3" dual exhaust on their stock 350's... :screwy: :screwy:
Yeah my dad ran 2" on his 69 z28, he said all the people who thought they were gung-ho got 4" for their 350s. But they never got enough back pressure. You need a LOT of CIs for 4".
2 1/2 Is just fine. but like i said in my opinion. 3 inch is just a lil bit louder and the back pressure doesnt drop much from a 2 1/2. just 4 inch is extreme. 2 1/2 is weak. so compromise and go in the middle. and when i say weak its my opinion and its reffering to sound. but 2 1/2 is fine, its just who wants to stay with stock? most cars came stock with 2 1/2.
not to be argumentative, but what car came w/ stock 2-1/2" duals? (i'm honestly asking)
i dont think it was till the mid to late 70s when they started coming with them. before that i think it was like 1 3/4 or 2 inch. it wasnt till exhaust technoligies started to take baby steps towards advancment.
my bad i think it was 2 inch exhaust they started putting on them. yea but still if your pushing over 400 hp or close to it go with 2 1/2 or 3. nothing bigger
He still hasn't posted cam specs, valve sizes, what heads, compression ratio, intake, carb'ed or efi, header style and primary size....there are a lot of variables here. You can build a 383 that will perform well with dual 2 1/4" pipes, or you can build one so extreme that a dual 3" system will be restrictive. Specifications are very important here.
most likely its a store bought 383. so 2 1/2 or 3 inch should be fine