Dynomax Ceramic Coated Headers

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Aug 8, 2009 | 02:39 PM

tristan69

Thread Starter

Racer

Joined: Oct 2006

Posts: 306

Likes: 1

From: Burnaby BC

Dynomax Ceramic Coated Headers

I just wanted to get as many comments on those who are using these Dynomax Ceramic Coated Headers.

http://www.summitracing.com/parts/WL...8/?image=large

My Hooker Super comps that I bought 2 years ago are too low and are digging up my blacktop driveway .

I have read posts that these ride higher, but want to hear all the pros and cons.

My cylinder heads are Edelbrock Performer RPM's

Thanks

Aug 8, 2009 | 07:34 PM

jzsilver79

Intermediate

Joined: Aug 2003

Posts: 45

Likes: 0

From: La Crosse Wi

I have had them on mine for over 3 years and no issues.

Aug 8, 2009 | 07:36 PM

pauldana

Race Director

Joined: May 2003

Posts: 10,956

Likes: 409

From: California

Just bought the same headers... not installed them yet... so heres a bump

Aug 8, 2009 | 10:25 PM

MN80Vette

Drifting

Joined: Sep 2006

Posts: 1,986

Likes: 21

From: Columbus MN

I've had those headers from Summit on my '80 for a few years. They have less clearance than stock, but I've never had any problems with them hitting anything. There are several other points that would hit first.

Here are a few pictures that show measured clearance, not just subjective clearances:

Note the clearance compared to the oil pan:

Aug 8, 2009 | 10:38 PM

MN80Vette

Drifting

Joined: Sep 2006

Posts: 1,986

Likes: 21

From: Columbus MN

BTW, I really like these headers. They still look great after 3-4 years. They fit around the steering and start well too:

Aug 9, 2009 | 01:56 AM

tristan69

Thread Starter

Racer

Joined: Oct 2006

Posts: 306

Likes: 1

From: Burnaby BC

Thanks, mine is a 69 and it might be different that the newer C3's.

Anyone else out there with a 68-72 vert using these Dynomax headers?

Thanks

Aug 9, 2009 | 10:08 AM

spikebot 81

Racer

Joined: Dec 2007

Posts: 341

Likes: 29

From: vancouver washington

I have these headers on the car for 2 years. No issues. The air dam in the front and the pipes under the diff are the lowest. ps sorry this is a 81

Last edited by spikebot 81; Aug 9, 2009 at 10:11 AM.

Aug 9, 2009 | 01:45 PM

Ganey

Race Director

Joined: Apr 1999

Posts: 11,520

Likes: 13

From: CORVETTE 77 385 C.I. TEXAS

Both the Corvette SB Hooker Super comps & Dynomax Cerama-Coat flow great. I have been rec. them & many have them now.

PS Walker is a major manu. of mufflers & when they lost the first Hot Rod muffler shootout they bought the winner, Cyclone & changed the name to Dynomax.
Mine are the old Cyclone chrome (sleeper setup).

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Aug 10, 2009 | 06:23 PM

tristan69

Thread Starter

Racer

Joined: Oct 2006

Posts: 306

Likes: 1

From: Burnaby BC

Local corvette shop said to use Hedman.

Anyone have these on there C3?

http://www.summitracing.com/parts/HE...8/?image=large

Aug 10, 2009 | 06:32 PM

#10

Sho'nuff

Instructor

Joined: May 2009

Posts: 180

Likes: 1

From: Prairieville Louisiana

All the Hedman's i see have footnotes saying wont clear steering damper?

Aug 10, 2009 | 07:04 PM

#11

pauldana

Race Director

Joined: May 2003

Posts: 10,956

Likes: 409

From: California

Quote:

Originally Posted by tristan69

Local corvette shop said to use Hedman.

Anyone have these on there C3?

http://www.summitracing.com/parts/HE...8/?image=large

had these last week, none ceramic... was happy....

had these last week, none ceramic... was happy....

Quote:

Originally Posted by tristan69

I just wanted to get as many comments on those who are using these Dynomax Ceramic Coated Headers.

http://www.summitracing.com/parts/WL...8/?image=large

I have these on as of today.... Happier!

Also having a new dyno run... I will tell you any difference from last dyno run...

Last edited by pauldana; Aug 10, 2009 at 07:08 PM.

Aug 10, 2009 | 07:37 PM

#12

CCrane65

Safety Car

Joined: Apr 2000

Posts: 3,802

Likes: 61

From: Wichita KS

The Hedman headers are not tuned and don't appear to be equal length while the Dynomax may not be tuned but do appear to be equal length.

cc

Aug 10, 2009 | 07:53 PM

#13

pauldana

Race Director

Joined: May 2003

Posts: 10,956

Likes: 409

From: California

Quote:

Originally Posted by CCrane72

The Hedman headers are not tuned and don't appear to be equal length while the Dynomax may not be tuned but do appear to be equal length.

cc

Aug 10, 2009 | 09:11 PM

#14

CheezMoe

Melting Slicks

Joined: Mar 2006

Posts: 3,456

Likes: 102

From: Piedmont Va

St. Jude Donor '11-'12-'13,'19-'20

I researched both and chose the Dynomax and with no regrets. 3 years later they still are looking new. (Caveat garage kept)

Aug 10, 2009 | 09:13 PM

#15

MN80Vette

Drifting

Joined: Sep 2006

Posts: 1,986

Likes: 21

From: Columbus MN

Quote:

Originally Posted by tristan69

Local corvette shop said to use Hedman.

Anyone have these on there C3?

http://www.summitracing.com/parts/HE...8/?image=large

Note the near-straight-down from 4-6 and 3-5 cylinders. I had block hugger headers like this (but stainless, not ceram coated) before the Dynomax ceram coated I have now. The straight-downs come too close to the motor mounts. The ss headers I had melted the urethane pads. I had urethanesicles hanging below the mounts.

Aug 10, 2009 | 09:36 PM

#16

jboweriii

Racer

Joined: Oct 2007

Posts: 327

Likes: 1

Here's mine

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