Who has Header kits for BBO?

I've been trying to find a "Build your own header" for Olds 455...!

Found others for their passenger cars ("F-UGLY")and block huggers (that will not work in the roadster).

Basically all I will need are the flanges and I'll be able to purchase my 1 7/8" mandrel bent pieces from my friend.

Any help would be appreciated.

Mark

 

Don't know if you've got any swaps in your area any time soon, but I picked up a set for $20 with good flanges...off hand I don't know of any new flanges, but I'm sure someone else does. FYI small block olds is the same.

 

Check with HEADERS BY ED, they are in Minnesota I believe. They have flanges for just about anything and can supply all of the material you might need (flanges, collectors, u-bends, straight pipe, etc.). They have a website and advertise in some high performance mags.
They are a little pricy but when your not dealing with the SBC ot the CBF sometimes it costs a little more.

Frank

 

Ok, check here:

http://www.kookscustomheaders.com

They advertise flanges and I know they make Oldsmobile headers, so I****ume they have just the flanges. I looked but there were too many pages, you'll probably be able to find something though. Looks like most of the flanges are around $100...

 

Make your own.
It's not difficult, just takes some time.

The pic shown below makes if fairly self-explanatory.

Use 1/4" cold rolled for a nice product.
Easier to work with than hot rolled imho.
The flanges shown are for my 455 Buick and made from 3" wide cold rolled.

You can make them one piece if desired - I did on my 32 - but it's not necessary.
Individual flanges work just fine.
And contrary to what some think, 1/4" is sufficient.

I've made several sets of headers with 1/4" and never a leakage or warpage problem.
Using official hot rod gaskets, aluminum asbestos looking white stuff sandwich stock gaskets as well as the thin shim stock gaskets on a Rocket motor.

The one piece ones I made for the 32 were cut out on a mill - big mess there with metal shavings everywhere.
The ones shown are simply drilled, the holes connected with a chisel and the remaining sharp points ground smooth so there's a nice rectangle pattern inside.
Remember to allow for the thickness of the U-bend tubing when you cut the port out.

The hot setup would be a plasma cutter, but I don't have one . . . yet....

 

The problem with that is that Olds exhaust manifolds/headers only have 5 bolts...one on the far front, one between the first and second tubes, one on top/in the middle of the center two tubes, one between the third and fourth tube, and one at the far back.

You either have 1 bolt keeping the first and last tubes on with three holding the center...or two bolts holding on the first and last and only one holding the center.