Dynomax Cerama-coat headers?
Thread Starter
Instructor
Joined: Dec 2001
Posts: 174
Likes: 0
From: Naples Fla
Dynomax Cerama-coat headers?
Has anybody used these on their C-3? How are the fit and quality? Time to upgrade my old aluma-coats. Any input would be greatly appreciated.
Thanks,
Jamey
[Modified by JameyZ28, 1:23 AM 11/12/2002]
Thanks,
Jamey
[Modified by JameyZ28, 1:23 AM 11/12/2002]
Drifting
Joined: Jul 2002
Posts: 1,855
Likes: 0
From: Cocoa Beach FL
Re: Dynomax Cerama-coat headers? (JameyZ28)
I put them on when I put in my new engine. They look great after ~700 miles and sound excellent. I have them paired up with 2.5" duals running into Flowmaster 40 series mufflers. The headers are definitely a good purchase for the price ($220 from Summit).
:cheers:
:cheers:
Le Mans Master
Joined: Jul 1999
Posts: 9,206
Likes: 17
From: Sewell NJ
Re: Dynomax Cerama-coat headers? (JameyZ28)
I put them on my 74 last year and like them a lot. So far the finish looks pretty much like the day I put them on and they gave a definite seat of the pants improvement in acceleration. They went in fairly easy but I had to make a dimple to clear the Z-bar on my 4 speed car. Others have installed them on their stick cars with no problems so this might just be unique to my car. When you have them installed try to get a crossover pipe made up and it will cut some of the resonance of the exhaust system. You should also use a metallic gasket like the Percy's dead soft aluminum on both the head portion and the collector portion of the header. This will eliminate the problem of blown gaskets. You can also use Stage 8 fasteners to stop the bolts from backing out. If you use the Stage 8 bolts don't install the locks for about a month. Each week you should retorque the header bolts because as they expand and contract initially the bolts will need to be retightened. After about a month or once the bolts no longer need tightening you can install the locks and they will stay put. Here's what mine looks like.
[Modified by vettfixr, 6:09 AM 11/11/2002]
[Modified by vettfixr, 6:11 AM 11/11/2002]
[Modified by vettfixr, 6:09 AM 11/11/2002]
[Modified by vettfixr, 6:11 AM 11/11/2002]
Le Mans Master
Joined: Oct 2001
Posts: 5,943
Likes: 3
From: Wildwood IL
Re: Dynomax Cerama-coat headers? (JameyZ28)
Me too!! Fit and finish are great for the price. Install a breeze too. Do yourself a favor and use soft aluminum header and collector gaskets when installing the headers. You'll be glad you did.... :cheers: :cheers:
Eddie
Eddie
Le Mans Master
Joined: Jul 1999
Posts: 9,206
Likes: 17
From: Sewell NJ
Re: Dynomax Cerama-coat headers? (JameyZ28)
If you're using straight plug heads you won't have any problems. As I said before I dimpled the #5 pipe to clear my z-bar and it worked well. I only needed about 1/8th inch additional clearance and the dimple didn't hurt the coating.
Thread Starter
Instructor
Joined: Dec 2001
Posts: 174
Likes: 0
From: Naples Fla
Re: Dynomax Cerama-coat headers? (vettfixr)
That's good to know. The Aluma-Coats that are on there now are dimpled pretty severly to clear the number 3 plug. I have Vortec heads now, but had the same problem w/ the stock heads.
Team Owner
Joined: Jun 2001
Posts: 43,136
Likes: 155
From: Thomson Georgia
Re: Dynomax Cerama-coat headers? (vettfixr)
I put them on my 74 last year and like them a lot. So far the finish looks pretty much like the day I put them on and they gave a definite seat of the pants improvement in acceleration. They went in fairly easy but I had to make a dimple to clear the Z-bar on my 4 speed car. Others have installed them on their stick cars with no problems so this might just be unique to my car. When you have them installed try to get a crossover pipe made up and it will cut some of the resonance of the exhaust system. You should also use a metallic gasket like the Percy's dead soft aluminum on both the head portion and the collector portion of the header. This will eliminate the problem of blown gaskets. You can also use Stage 8 fasteners to stop the bolts from backing out. If you use the Stage 8 bolts don't install the locks for about a month. Each week you should retorque the header bolts because as they expand and contract initially the bolts will need to be retightened. After about a month or once the bolts no longer need tightening you can install the locks and they will stay put. Here's what mine looks like.
[Modified by vettfixr, 6:09 AM 11/11/2002]
[Modified by vettfixr, 6:11 AM 11/11/2002]
[Modified by vettfixr, 6:09 AM 11/11/2002]
[Modified by vettfixr, 6:11 AM 11/11/2002]
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Racer
Joined: Sep 2002
Posts: 462
Likes: 1
From: York PA
Re: Dynomax Cerama-coat headers? (JameyZ28)
You read my mind, JameyZ28. Last evening I "discovered" Stage 8 bolts on a web site, and came in to ask tonight. Looks like Dynomax is on my list. CorvetteForum is the best !
