Was wondering if anyone has pics of the Hooker 2210 exhaust flange as viewed from the port's side. Is the flange straight and smooth, or are the pipes welded on the inside of the flange causing a raised sealing surface. I would also like to see the port shape. Can anyone measure the width of the port and the height of the port? I know the tubes are supposed to be 1-3/4", but they must change shape at the flange to allow the bolts to fit.
Thanks in advance for your assistance.

 

Going from memory I believe it is a raised seal surface. They are rectangular shape ports. I'll get you exact pics in about 4 hours from this post. My headers are still laying on the floor of my bedroom now. I'll also try to get you some measurements... but without a dial caliper they won't be to exact.

 

Thanks! I'm really looking forward to seeing those pics and getting those measurements-even if they aren't exact. My old hedman longtubes worked for my old Dart 215's, but won't fit my new AFR's. The gasket recommended by AFR is a 1406 which measures 1.52"x 1.63" (actual size of the hole). The Hedman longtubes are 1-5/8" OD, but are closer to 1.5" ID. and are not even close to sealing because they are round. The gasket is more of a D shape. The port in the head is square. A tall oval or tall rectangular port will fit much better than a round port. I probably need Hedman 1-7/8" primaries, but the Hooker 2210's are much more cost effective. However, sealing the port tightly with no leakage is my primary concern. Hedman also makes a step header that goes from 1-3/4" to 1-7/8". This might be my best bet. I'm still undecided.
Once I find out which headers will fit the heads, Maybe I'll start a poll to find out which ones will be best for my high horse combo.

 

Great topic. I have the same questions. I have CNC-ported Canfield heads which require the Fel-Pro 1406 gasket. The exhaust ports measure approx. 1.61" wide x 1.45" high. It would be great to get the shape and inside diameter of the Hooker 2210's to see if they can be made to work.

 

I went out in the garage and measured the outside diameter of the primaries on my Hooker 2131 '69 Camaro headers. These are 1 3/4" primary headers and I'm guessing they use the same flange on the 2210. Using a caliper, the average primary OD at the flange was 1.50" wide by 1.75" high. Since the tube is 18 gauge, the ID of the tube at the flange would be 1.402" wide by 1.652" high. These headers would definitely obstruct the exhaust ports on my Canfield heads.

 

Ok I have the pic uploaded. It's hard to see but yes there is a raised seal surface on it.



I get 1.70 x 1.75, but like I said I'm just using a ruler and my surface of the inner tube is very uneven.

 

You are getting 1.7" wide x 1.75" tall INSIDE diameter? The pipe is only 1.75" outside diameter and 18 gauge tubing is .098" thick.

 

Hey fireturd, Thanks for getting us those measurements! You've been very helpful. I'm trying to gather information on the Hedman #65171 now to see if that, too may be an option. It is a 1-3/4" to 1-7/8" primary to a 3-1/2" collector. Hedman is very slow to return my Email, so if anyone has some input who has some experience with these headers, now is the time to give your 2 cents! Thanks again for the pics and measurements. Here are the exhaust ports

 

Yes, that's what I measured with my cheap free wooden ruler. My room as been such a mess ever since I built that 383 in it. I got a $1 tape measurer out and I get 3.5 cm wide by 4.2 cm. Which is ~ 1.4" x 1.65".

 

COOL!!! You built a 383 in your bedroom! That's my kind of guy! I certainly remember those days! Glad I'm not the only one who has built "indoors". I've torn down a rearend in a friends living room, ported a pair of heads in a finished basement, but never attempted to build a small block in my bedroom! I sure hope you don't live at home with your parents. LOL!

 

Fireturd - Thanks very much for the help.

Tinkerin - Your ports are even wider than mine. By looking at fireturd's picture, you can see the distance between the bolt hole and the port entry on the header. Compare that to your engine picture and see that your bolt hole is much closer to the port. Those Hooker's are gonna overlap into your exhaust port.

--Neil

 

Yah, I was kind of checking that out. Wonder if 1-7/8" would be a better choice? I don't really know anyone who's running those. I searched and found a thread about some 2" primaries, but that's overkill for my combo. 1-7/8" is about as big as I'd wanna go. If anyone has 1-7/8 headers, please don't be afraid to post a reply. We want to hear from you too! Maybe i should just start a new thread called 1-7/8" Hedman Headers. Thanks everyone for the help...I think I'm gonna post a new topic.

 

You know what? Looking cosely at the photo from fireturd, I noticed that the bolt hole in the flange is partially through the weld for the tube. That looks very close to what is needed. That has prompted me to take a couple of pics of my own as an experiment.
Here is a pic of the recommended gasket bolted to the head:

 

Notice how the gasket overlaps the ports in the upper Right and Left hand corners, yet this is the recommended gasket?!?

 

You can also see that there is no room for trimming this gasket to better match the port as evidenced by this photo. Any trimming will surely cause a leak at the bolt hole areas. Maybe just a slight trim above the bolt holes will work ok, but that bolt is dangerously close to the port as it is!

 

Tinkerin,

I think the Fel-Pro 1406 is 1.55" wide. Fireturd's measurement shows the Hooker 2210 is about 1.4" wide. I'm not sure how bad that will hurt flow, maybe you can lightly grind the flange on an angle to open it up a bit.

I'm also looking at 1 7/8" options for my motor. All headers with this primary size require a flange adaptor which relocates the header bolts.

--Neil

 

That's a valid point as well. The sub flange could be contoured to the shape of the port, and then there would be no worries about the header itself sealing, because 1.875" round is bigger than 1.6 square.

Somewhere on this board I read how a guy put a set of the 2" primary Hedmans on, but he had an aftermarket K-member. I have not found any footnotes on the Hedman website pertaining to this, so I've been trying to get a straight answer from them regarding fitment with that odd-looking collector. I have not heard back from them yet. If you find out any info let me know!