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05-26-2003, 11:33 AM
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#1 |
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Got earplugs?
Join Date: Mar 2002
Location: Winfield, Kansas
Posts: 556
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Dynomax Headers
I am going to buy some dynomax cerama-coat headers and was wondering if you guys that have them like them or not.
Thankx 
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1968 GMC Original A/C, bucket seats, PS,PB 396 bored to 402, Dynomax cerama-coat headers, Super 40 Flowmasters, 272/284 Crane cam, Crane gold roller rockers, holley 750 cfm double pumper, Edelbrock Performer RPM intake, HEI ignition, 9.5:compression Alltogether 411HP and 446ft/lbs Dana 60 w/ 3.54 gears Turbo 400 tranny Why would you have anything other than a big block? HAHA |
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05-26-2003, 12:22 PM
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#2 |
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Registered User
Join Date: Jan 2001
Location: Killingworth, CT. USA
Posts: 3,378
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I installed a set on mine in 1997, they rotted through at the collectors after about 5 years. Other brands lasted 2-3 years so I guess thet are somewhat better. They fit fine and changing spark plugs was no problem.
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1971 C10 swb stepside 350/700R4/3.73posi (retired as of 4/22/03) 1998 S10 short bed 2002 S10 Blazer 1942 Oldsmobile 1958 Massey Harris Pony 1951 Wife Killingworth, Connecticut May those who love us, love us, any of those who do not love us, may God turn their hearts. And if God is unable to turn their hearts, may he turn their ankles so we may know them by their limping. A man who works with his hands is a laborer; a man who works with his hands and his brain is a craftsman; but a man who works with his hands and his brain and his heart is an artist. |
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05-26-2003, 02:21 PM
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#3 |
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Registered User
Join Date: Aug 2002
Location: mass
Posts: 1,277
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havent had any problems with mine after a year.
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05-26-2003, 02:46 PM
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#4 |
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Registered User
Join Date: Dec 1999
Location: Austin, TX, USA
Posts: 7,727
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I bought a set of AK5000 Blackjack alumacoats years ago. They had a lifetime coating warranty. Blackjack was bought by Walker and they honored the warranty by replacing the AKs with a set of ceramics. The coating didn't hold up very well. The car was hardly driven and just kept in the garage. I would guess that more driving would have been easier on them! Very good customer service, however! I would consider another set because of that.
Heddmans are my favorite headers, but they'll cost you much more than the Dynomax coated headers will FWIW.
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44 Willys MB 52 M38A1 64 Corvette Coupe 68 Camaro 'vert LT1 & TH700 69 Z/28 355 12.6's @110 69 Chevy Short Step 4 1/2"/7" drop 72 Jimmy 4WD 4spd 4" & 35's 02 GMC 2500HD 4x4 Duramax |
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05-26-2003, 03:49 PM
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#5 |
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Member since 2000
Join Date: Dec 2000
Location: Mountain View Ca / Mexico
Posts: 7,874
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chevelle headers........
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05-26-2003, 10:46 PM
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#6 |
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97' Tahoe 2dr/2wd
Join Date: Jul 2002
Location: Huffman,TX
Posts: 1,168
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alexis,
what brand of headers are those? is your engine sitting in the front v8 location? do you like the fit? any clearance problems? tommie |
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05-26-2003, 11:33 PM
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#7 |
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Registered User
Join Date: Feb 2003
Location: Chicago Area
Posts: 35
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I bought a set of dynomax coated headers 2 years ago for my 70 with a 350. They required clearancing (denting) to clear the driver's lower a-arm mount. The coating is starting to rust through this year, even though I dont put many miles on the truck and dont drive it in salt.
They are pretty inexpensive for a coated header, so you get what you pay for. I wouldn't expect the coating to last as long as an aftermarket coating job like HPC, etc.
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Tmax 1967 Chevy C10 Longbed Fleet 1970 Chevy C10 Longbed Fleet 1971 Chevy C10 Shortbed Fleet (Currently getting a 99 LS-1) 1941 International KB-5 Streetrod(Chevy 350/350TH Powertrain) |
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05-26-2003, 11:38 PM
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#8 |
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Registered User
Join Date: Feb 2003
Location: Chicago Area
Posts: 35
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I bought a set of dynomax coated headers 2 years ago for my 70 with a 350. They required clearancing (denting) to clear the driver's lower a-arm mount. The coating is starting to rust through this year, even though I dont put many miles on the truck and dont drive it in salt.
They are pretty inexpensive for a coated header, so you get what you pay for. I wouldn't expect the coating to last as long as an aftermarket coating job like HPC, etc.
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Tmax 1967 Chevy C10 Longbed Fleet 1970 Chevy C10 Longbed Fleet 1971 Chevy C10 Shortbed Fleet (Currently getting a 99 LS-1) 1941 International KB-5 Streetrod(Chevy 350/350TH Powertrain) |
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05-26-2003, 11:45 PM
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#9 |
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Account Suspended
Join Date: Jun 2000
Location: over yonder
Posts: 14,270
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My DynoMax ceramic coated headers came with a Lifetime Warrantee against rust and/or discoloration. They are coated by Jet-Hot, which IS an aftermarket company like HPC. They are also the same as the ones in Alexis's pic ... made for 67-78 Chevelle/Malibu with Small Block Chevy. Bought mine from Jeg's ... somewhere around $219-229 if I remember correctly. And mine fit like they were made for our trucks ... no mods needed.
heres a link to Jeg's online catalog ... they're listed at $229.99. Click Here Last edited by Shane; 05-26-2003 at 11:55 PM. |
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05-27-2003, 12:03 AM
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#10 |
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Registered User
Join Date: Apr 2003
Location: missouri city, tx
Posts: 4,486
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sweet setup...
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70 longbed 496/th400/Ford 9" |
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05-27-2003, 12:04 AM
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#11 |
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Registered User
Join Date: Apr 2003
Location: missouri city, tx
Posts: 4,486
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i have no idea what mine are... came with it...
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70 longbed 496/th400/Ford 9" |
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05-27-2003, 10:01 AM
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#12 |
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Got earplugs?
Join Date: Mar 2002
Location: Winfield, Kansas
Posts: 556
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Ya the ones im getting also come with the lifetime warranty against rust and discoloration. The Jet-Hot coating. I guess even if they do rust you can just send them in and get some new ones.
Thanx for all the help.
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1968 GMC Original A/C, bucket seats, PS,PB 396 bored to 402, Dynomax cerama-coat headers, Super 40 Flowmasters, 272/284 Crane cam, Crane gold roller rockers, holley 750 cfm double pumper, Edelbrock Performer RPM intake, HEI ignition, 9.5:compression Alltogether 411HP and 446ft/lbs Dana 60 w/ 3.54 gears Turbo 400 tranny Why would you have anything other than a big block? HAHA |
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05-27-2003, 10:15 AM
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#13 |
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Registered User
 
Join Date: Feb 2001
Location: East Central, MO
Posts: 11,336
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I bought Hooker headers direct from JetHot and they didnt last one year. One of the main guys from JetHot started a copmpany in Okla called Airborne Coatings. I have heard it is much better! I just had my new headers powder coated with 1200 degree powder coat. The guy that did them does sprint car headers and isnt having any problems with them. You can actually use still wool on them I'm told.
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05-27-2003, 11:03 AM
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#14 |
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Post Whore
Join Date: Feb 2000
Location: Rose Hill, KS, USA
Posts: 12,686
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Hey Jon, how's it going. I just recently bought a set of those headers for the 454 I'm swapping in. I haven't fired the engine so can't give any details about how well the are going to last. I will attach a pic but since this is a 454 going in a 4wd the fitment won't be the same as with your factory big block. I did have to do some clearancing but I'm thinking you should be fine. These are the 67-87 BBC headers for a 2wd.
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1970 Blazer with a 400 sbc and 4" lift 1980 Pontiac Trans Am, 455 Oldsmobile 2012 Kawasaki Concours 14 |
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05-27-2003, 11:04 AM
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#15 |
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Post Whore
Join Date: Feb 2000
Location: Rose Hill, KS, USA
Posts: 12,686
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And here is a second pic. Hope to see you at the Winfield show in June.
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1970 Blazer with a 400 sbc and 4" lift 1980 Pontiac Trans Am, 455 Oldsmobile 2012 Kawasaki Concours 14 |
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05-27-2003, 11:38 AM
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#16 |
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Registered User
Join Date: Dec 2002
Location: Warrensburg MO
Posts: 143
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Put a set of jetcoated ones on the 402 about 2.5 years ago and the coating is now flaking off. Yes they have a lifetime warranty but i will be without my truck for however long it takes them to replace the headers. I will get them sent in eventually. I'm curious if other brand header with jet coat have the same problem.
I had no clearance problems, they will slide in from the top or the bottom with no problems. |
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05-27-2003, 11:54 AM
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#17 |
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Registered User
Join Date: Feb 2001
Location: East Central, MO
Posts: 11,336
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My JetHot headers rusted through from the inside out in about 6 months. They looked bad! Talked to another guy one night that had a set on his mini rod and they turned blue on him from the heat. he had all kinds of problems with JetHot doing anything about it.
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05-27-2003, 12:26 PM
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#18 |
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Prestige Worldwide
Join Date: Feb 2001
Location: Worldwide
Posts: 2,552
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I bought a set a few years ago for my other 71' I had. They would not clear the frame rail on the passenger side. They were the 3/4 Length for the chevelle but wouldnt clear.
Jason |
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05-27-2003, 12:41 PM
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#19 |
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67-72 Addict!
Join Date: Feb 2002
Location: The TAX State!
Posts: 7,856
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My truck has Hooker Super Comps that were originally ceramic coated. When I bought the truck 2 years ago the coating was almost gone so I wire brushed the rest off and sprayed them with 1500° aluminum paint. I have to touch them up every few months to keep them up. I was planning on buying Flowtech ceramics but now you guys have me thinking. I probably should just keep what I got if this ceramic coating doesn't last.
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Jim 1970 C/10 Fleetside w/Ghost Flames Lowered 4.5" front and 4" rear (Raked) 355/350 Turbo w/shift kit 10" Redneck Performance Verter w/2500 stall Hooker Super Comps part#2808-1 Performer RPM Air-Gap 12 Bolt w/3:73 gears- Eaton Posi Comp Cams XE262 with 1.6 Crane Energizers, Road Demon 625 and Brodix IK 180 heads |
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05-27-2003, 12:48 PM
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#20 |
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Got earplugs?
Join Date: Mar 2002
Location: Winfield, Kansas
Posts: 556
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Jack- they are puting on another show in Winfield?
When is it? i haven't heard anything about it yet. 
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1968 GMC Original A/C, bucket seats, PS,PB 396 bored to 402, Dynomax cerama-coat headers, Super 40 Flowmasters, 272/284 Crane cam, Crane gold roller rockers, holley 750 cfm double pumper, Edelbrock Performer RPM intake, HEI ignition, 9.5:compression Alltogether 411HP and 446ft/lbs Dana 60 w/ 3.54 gears Turbo 400 tranny Why would you have anything other than a big block? HAHA |
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05-27-2003, 01:57 PM
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#21 |
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Post Whore
Join Date: Feb 2000
Location: Rose Hill, KS, USA
Posts: 12,686
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Yep, June 22 - contact Barn9 (Larry Barnes) for more details as he is trying to get an area for just 67-72's set up.
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1970 Blazer with a 400 sbc and 4" lift 1980 Pontiac Trans Am, 455 Oldsmobile 2012 Kawasaki Concours 14 |
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05-27-2003, 09:25 PM
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#22 |
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Registered User
Join Date: Feb 2002
Location: orange, tx usa
Posts: 167
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Bought mine through Jegs andafter a year, mine started to get a little surface rust. I wasnt ready at the time for the truck to be on the road so I called Jegs about the lifetime warranty and Jegs hooked me up with Jet Hot Coatings. Jet Hot Coatings asked me to ship back the headers and they recoated the headers for the cost of shipping($20). Been fine ever since. I did have to send in a reciept though. I like mine though i would like them tucked under a little more. With my lowered truck, they sit about 4" off of the groung. Gotta be real careful around speed bumps. Hope this helps, Guy
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guypm 1971 SWB Fleetside/350 performer rpm heads &intake/ holley 750dp/1.5roller rockers/MSD6a/700r4 1650stall/one piece driveshaft/3.73 open/dynomax ceramic coated headers/3chamber flowmasters/ |
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