Hedman hedders - hooker headers, size?
Thread Starter
Racer
Joined: Oct 2005
Posts: 405
Likes: 0
From: 1984 crossfire, Alhaurin de la Torre Malaga, Spain
Hedman hedders - hooker headers, size?
I am looking for hedders (headers) for my 1984 CFI. I selected the 1 5/8 hedman Elite hedders, but cant find a connection between the hedders and the CAT. I may be able to use the 2 1/2 - 3 inch hooker Y pipe, but can´t find any info on the distance between the hedder outputs. Is someone out there that e.g. changed Hedman for Hookers and found that the distance between the connections is the same (or worse, different)?
Thread Starter
Racer
Joined: Oct 2005
Posts: 405
Likes: 0
From: 1984 crossfire, Alhaurin de la Torre Malaga, Spain
Originally Posted by goldeneye_vet
That's too bad because my Hedman Elite's fit great on my 85 383. I've had them for 2 years and didn't pay anywhere near what Hooker's cost and these headers still look brand new.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Team Owner
Joined: Jan 2003
Posts: 20,315
Likes: 245
From: Summerland B.C. Canada
I bought the hedman elites and will be using the stock Y. I will be cutting back the Y and adding a piece of pipe if needed. The ball socket collector flange should be easy to tie into since you don't have to be dead on with alignment. I will tack it together and pull it out to get a good full weld.
I will try and get it done sunday or monday and post pics.
I will try and get it done sunday or monday and post pics.
Thread Starter
Racer
Joined: Oct 2005
Posts: 405
Likes: 0
From: 1984 crossfire, Alhaurin de la Torre Malaga, Spain
Originally Posted by AGENT 86
I bought the hedman elites and will be using the stock Y. I will be cutting back the Y and adding a piece of pipe if needed. The ball socket collector flange should be easy to tie into since you don't have to be dead on with alignment. I will tack it together and pull it out to get a good full weld.
I will try and get it done sunday or monday and post pics.
I will try and get it done sunday or monday and post pics.
Looking forward to the results, good luck with the installation.
Thread Starter
Racer
Joined: Oct 2005
Posts: 405
Likes: 0
From: 1984 crossfire, Alhaurin de la Torre Malaga, Spain
Originally Posted by Aaron's 87
My regular hedman's test fit fine, but I haven't run them on the car yet.
I sent my Elites back because the port was 1.5 x 1.2 oval. The 1.2 was way smaller than my exhaust port.
I sent my Elites back because the port was 1.5 x 1.2 oval. The 1.2 was way smaller than my exhaust port.
Therefore I have to find out what fitment is.
CFI, please chime in here. I consider you as the CFI expert. Do we have a fitment problem here for the Elites?
I apreciate your comment.
Racer
Joined: Aug 2002
Posts: 386
Likes: 0
From: Lancaster Lancashire
Originally Posted by Nico
No cat, no go at the test. Than I have to drive a suzuki.
I would have thought that when your 84 was new. cats wern't fitted to many cars then! or are your rules - if they were fitted when new, they have to remain??
Wasn't your vette imported from Britain? If so it could have had the cats legitimately removed here. Do you see where I am going with this.
Dave
Last edited by Davemc1963-87conv; Apr 21, 2006 at 05:36 AM.
Thread Starter
Racer
Joined: Oct 2005
Posts: 405
Likes: 0
From: 1984 crossfire, Alhaurin de la Torre Malaga, Spain
Originally Posted by Davemc1963-87conv
Nico, Is there not a cut off date for cats in Spain? In the UK, its August 1992. Anything before that can have the cat removed. eg. my 87 has no cats and passes our mot without issue, although there is still a sniffer test of course, but less stringent than post 92 cat cars.
I would have thought that when your 84 was new. cats wern't fitted to many cars then! or are your rules - if they were fitted when new, they have to remain??
Wasn't your vette imported from Britain? If so it could have had the cats legitimately removed here. Do you see where I am going with this.
Dave
I would have thought that when your 84 was new. cats wern't fitted to many cars then! or are your rules - if they were fitted when new, they have to remain??
Wasn't your vette imported from Britain? If so it could have had the cats legitimately removed here. Do you see where I am going with this.
Dave
Advanced
Joined: Jun 2005
Posts: 65
Likes: 3
Originally Posted by Nico
no discussion possible. 0.5 % and thats it. Also the other gasses are strict like a brand new car.
After you know they are wrong, you should file a complaint about that or try a different inspección place. They are probably just jealous because you have such a magnífico car!
Thread Starter
Racer
Joined: Oct 2005
Posts: 405
Likes: 0
From: 1984 crossfire, Alhaurin de la Torre Malaga, Spain
Originally Posted by Mr X
I think you should very first find out what the spanish law exactly says about the car that old. You cannot trust the officials, they probably don't know **** and are just a pain in the ***.
After you know they are wrong, you should file a complaint about that or try a different inspección place. They are probably just jealous because you have such a magnífico car!
After you know they are wrong, you should file a complaint about that or try a different inspección place. They are probably just jealous because you have such a magnífico car!
So I solved the problem the easy way, PM me if you want to know.But the enviroment is no issue in this thread, I passed OK. I am looking for the size and fitment of hedman elite hedders and especially the y between the hedders and the CAT.
Team Owner
Joined: Jan 2003
Posts: 20,315
Likes: 245
From: Summerland B.C. Canada
Originally Posted by Aaron's 87
My regular hedman's test fit fine, but I haven't run them on the car yet.
I sent my Elites back because the port was 1.5 x 1.2 oval. The 1.2 was way smaller than my exhaust port.
I sent my Elites back because the port was 1.5 x 1.2 oval. The 1.2 was way smaller than my exhaust port.
I had to enlarge the ports on my 128 heads to match to match the ports on the elites. What heads are you using ??
Race Director
Joined: Sep 2000
Posts: 17,298
Likes: 33
From: The Top of Utah
His original question was about the width, the distance between the tines or legs of the header flanges between Hooker and Hedman headers. Nico has very limited parts, supplies, and talent available to help him with his projects. He can order the Hooker "Y" pipe if the spread of the collectors for Hookers and Hedmans are close. We don't find anyone that makes a prefabbed "Y" pipe for the Hedmans. If this happened to many of us here, we would just drive with open headers to the muffler shop and have them connected. Nico doesn't have the luxury of that option.
Now, since it was mentioned by Aaron's 87, he is concerned that the ports of the headers may not be proper. The only comfort I have to offer on that subject, is that these headers are made for small block Chevy engines and Hedman has been making headers forever. Any company CAN produce a defective product. I don't know how you guard against THAT possibility. For what it's worth, it is perfectly acceptable for the port in the header to be larger than the port in the head.
RACE ON!!!
Now, since it was mentioned by Aaron's 87, he is concerned that the ports of the headers may not be proper. The only comfort I have to offer on that subject, is that these headers are made for small block Chevy engines and Hedman has been making headers forever. Any company CAN produce a defective product. I don't know how you guard against THAT possibility. For what it's worth, it is perfectly acceptable for the port in the header to be larger than the port in the head.
RACE ON!!!
Thread Starter
Racer
Joined: Oct 2005
Posts: 405
Likes: 0
From: 1984 crossfire, Alhaurin de la Torre Malaga, Spain
Originally Posted by CFI-EFI
His original question was about the width, the distance between the tines or legs of the header flanges between Hooker and Hedman headers. Nico has very limited parts, supplies, and talent available to help him with his projects. He can order the Hooker "Y" pipe if the spread of the collectors for Hookers and Hedmans are close. We don't find anyone that makes a prefabbed "Y" pipe for the Hedmans. If this happened to many of us here, we would just drive with open headers to the muffler shop and have them connected. Nico doesn't have the luxury of that option.
Now, since it was mentioned by Aaron's 87, he is concerned that the ports of the headers may not be proper. The only comfort I have to offer on that subject, is that these headers are made for small block Chevy engines and Hedman has been making headers forever. Any company CAN produce a defective product. I don't know how you guard against THAT possibility. For what it's worth, it is perfectly acceptable for the port in the header to be larger than the port in the head.
RACE ON!!!
Now, since it was mentioned by Aaron's 87, he is concerned that the ports of the headers may not be proper. The only comfort I have to offer on that subject, is that these headers are made for small block Chevy engines and Hedman has been making headers forever. Any company CAN produce a defective product. I don't know how you guard against THAT possibility. For what it's worth, it is perfectly acceptable for the port in the header to be larger than the port in the head.
RACE ON!!!
AGENT 86
Please measure the center - center with between the hedder connections to the Y when the car is up. That may help me to find a Y