Shorty Headers

[caw_86]

Ive been browsing for a set, my goal is just to get something that is a reputable brand and wont rust like the shitbox stock ones. Not to concerned with performance gains. These are only 409 grade, but im not really ready to drop serious money on exhaust for a custom made 304 set, i dont think one wxist on the market for 4wd. This is what i think i will be going with

JBA Performance Exhaust 1832SJS 1 1/2

JBA Performance Exhaust uses a voluntary product identification program whereby all emission sensitive products can be identified by placing numbered labels in product packaging and listing corresponding numeric codes next to each part number. The corresponding numbers and explanations are as...

pertronixbrands.com

 

[edgartwib]

Just this week i pulled the trigger on
flowtech shorty headers and y pipe (11504) to go along with a new 3" catback Flowmaster 40 single out kit on my stock 350 tbi. (cat was previously deleted)
This is a copy of the Jegs header back exhaust kit they once sold.
It was also the cheapest, most strait forward, non chineseium US made kit I could put together. I have a buddie with a 89 rcsb with that jegs kit on and i like it.
I was able to piece it together online and jegs price matched it.
I'm not looking for huge gains just wanting my 30yo 350 to breath easier .

 

[Kens1990K2500]

That's for heat riser, the silver metallic convoluted tube, comes off manifold brings warm air into air cleaner has thermostatic valve on snorkel.

I have shorty headers ($100 off eBay, surprisingly good quality), and fabricated my own heat riser. But, my stainless steel headers don't throw off enough heat to open the thermostatic valve on my (stock) air cleaner.

 

[GoToGuy]

Without fabricating a hollow donut around the the exhaust tube to capture as much hot air possible, try to mount riser adapt tube as close to the exhaust port as possible to capture exhaust heat at hottest point. As it just leaves port.
Good luck

 

[SuperSpore]

Without fabricating a hollow donut around the the exhaust tube to capture as much hot air possible, try to mount riser adapt tube as close to the exhaust port as possible to capture exhaust heat at hottest point. As it just leaves port.
Good luck

that's a good point... thanks

 

[L31MaxExpress]

that's a good point... thanks

Hedman makes some kits, but easily duplicated with an off the shelf exhaust connector from any auto parts store and a small piece of scrap bar stock. The hot air stove I made, simply cut the piece of tubing at an angle and welded it to the header tube with a couple of solid tack welds. Leaving a gap for air to enter.

Hedman Performance Group

Hedman Hedders & Trans-Dapt Performance Products are two of the hot rod industries original manufacturers, dating way back to 1954. Known primarily for exhaust headers, engine mounts, carburetor spacers and adapters, and chrome and aluminum customizing accessories, these two pioneering companies...

www.hedman.com

 

[L31MaxExpress]

Doug Thorley had the same approach on their headers. Mine was on #2 primary, facing up between 2&4 just like the OE manifold.

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[SuperSpore]

Thats a nice pic.
you would think they would come tack welded like this on the shorty headers with carb stamps, since they're intended for smog compliance...
but it's easy enough to do if the hose clamp becomes an issue.

Doug Thorley had the same approach on their headers. Mine was on #2 primary, facing up between 2&4 just like the OE manifold.

You must be registered for see images attach

 

[Sean Buick 76]

What are you looking to gain?

Yes no gains unless you go long tube

 

[L31MaxExpress]

Yes no gains unless you go long tube

There is definitely a very noticeable gain with shorties. Stock manifolds are horrible and then again so is the whole 1500 exhaust system. The best part is the shorties typically do not crack in half like the iron manifolds do.