Are these headers any good? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

KEH · 02-16-2003, 02:11 AM

I don't know what kind they are, or if they are worth getting recoated. Any thoughts?

Thanks

mikep · 02-16-2003, 02:17 AM

They look like dynomax/summit headers. Paint'em, put them on. They'll work fine. mine do.

KEH · 02-16-2003, 02:23 AM

Thanks Mike. They have been off for a long time, is there a gasket that goes between the header and exhaust pipe?

Hotrod70C10 · 02-16-2003, 02:34 AM

yeah there is a gasket go to a local auto parts store and get a pair of exhaust manifold gaskets for a small block chevy if that's what you have anyways. They are cheap under $10

Hotrod70C10 · 02-16-2003, 02:38 AM

sorry I'm an idiot. there are colector gaskets also. They'll run you about 3 bucks each. You might have to get the other half of the colector's if you didn't get them with the headers.

Hooter · 02-16-2003, 05:46 AM

Personally I would opt for the copper gaskets, they are a little more money but they are re usable and expand and conrtact to compensate diferentiating heating on the metal surfaces

69 Short Fleet · 02-16-2003, 05:56 AM

I have the identical headers on my truck, they work great and came with the truck when I bought it. I saw a pair on e-bay and e-mailed the seller and he said they were "Blackjack" as I didn't know myself, later Doug

Longhorn Man · 02-16-2003, 12:11 PM

As for the collector gaskets, try the dead soft alluminum ones, they are awsome.
I have a set that have been on 3 sets of headers, and removed fron these headers at least a dozen times and still seal perfectly almost years later.

Kruzer69 · 02-16-2003, 12:19 PM

There Not Flowtech but they sure look like summit headers.

Mike C · 02-16-2003, 03:25 PM

They are most likely Blackjack AK5000 alumacoats. Could be Cyclones as well, the two were sister companies. They were bought by Walker I think? They had a lifetime warranty, and they honored mine for a set of Camaro AK5000 I had. Swapped me for a set of ceramic coateds, but I wasn't all that impressed. They sprayed molten aluminum on the tubes. Pre-dates the ceramic coatings you have now. Those in the pic are a cheap set of headers. The first set of AK's I had were wicked. Big tube, equal length, individual flanges. Rockin'! Let them go with a car I sold, so I bought another set. POS in comparison.

If you've got 'em, might as well run 'em. Heddman is my favorite header manf., but Hookers are good, too.

GMC JUNKIE TOO · 02-16-2003, 10:40 PM

Dejavue those look exactly like the ones I took off of my truck last week rust silver paint I put on a set og coated dynomax headers exact same thing except for the flanges and they hang at a funny angle.

02-16-2003, 02:11 AM	#1
KEH Better late than never Join Date: Dec 2001 Location: Columbus, IN Posts: 324	Are these headers any good? I don't know what kind they are, or if they are worth getting recoated. Any thoughts? Thanks Attached Images __________________ 1970 C/10 SWB Stepside

02-16-2003, 02:17 AM	#2
mikep Used to have a truck Join Date: May 2002 Location: port orchard WA Posts: 1,552	They look like dynomax/summit headers. Paint'em, put them on. They'll work fine. mine do. __________________ No truck :-(

02-16-2003, 02:23 AM	#3
KEH Better late than never Join Date: Dec 2001 Location: Columbus, IN Posts: 324	Thanks Mike. They have been off for a long time, is there a gasket that goes between the header and exhaust pipe? __________________ 1970 C/10 SWB Stepside

02-16-2003, 02:34 AM	#4
Hotrod70C10 Low & Slow Join Date: Dec 2002 Location: Oklahoma Posts: 1,047	yeah there is a gasket go to a local auto parts store and get a pair of exhaust manifold gaskets for a small block chevy if that's what you have anyways. They are cheap under $10 __________________ 70' C-10 LWB Fleetside 4.5/6 drop

02-16-2003, 02:38 AM	#5
Hotrod70C10 Low & Slow Join Date: Dec 2002 Location: Oklahoma Posts: 1,047	sorry I'm an idiot. there are colector gaskets also. They'll run you about 3 bucks each. You might have to get the other half of the colector's if you didn't get them with the headers. __________________ 70' C-10 LWB Fleetside 4.5/6 drop

02-16-2003, 05:46 AM	#6
Hooter My other Love Join Date: Aug 2001 Location: Castlegar B.C. Canada Posts: 4,085	Personally I would opt for the copper gaskets, they are a little more money but they are re usable and expand and conrtact to compensate diferentiating heating on the metal surfaces __________________ Castlegar B.C.The great white North (Canada Eh!) Hooter_5@hotmail.com First generation Monte Carlo club pictures of my life

02-16-2003, 05:56 AM	#7
69 Short Fleet Registered User Join Date: Nov 2002 Location: Kelowna B.C. Canada Posts: 1,086	I have the identical headers on my truck, they work great and came with the truck when I bought it. I saw a pair on e-bay and e-mailed the seller and he said they were "Blackjack" as I didn't know myself, later Doug

02-16-2003, 12:11 PM	#8
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	As for the collector gaskets, try the dead soft alluminum ones, they are awsome. I have a set that have been on 3 sets of headers, and removed fron these headers at least a dozen times and still seal perfectly almost years later.

02-16-2003, 12:19 PM	#9
Kruzer69 Registered User Join Date: Jan 2002 Location: Calgary/Alberta/Canada Posts: 103	There Not Flowtech but they sure look like summit headers. __________________ 1969 Chev 4x4 9" of lift,327cid,38/16/16.5 Super Swampers,Factory Tack,Powder Coated Frame and other misc. Calgary, Alberta, Canada

02-16-2003, 03:25 PM	#10
Mike C Registered User Join Date: Dec 1999 Location: Austin, TX, USA Posts: 7,723	They are most likely Blackjack AK5000 alumacoats. Could be Cyclones as well, the two were sister companies. They were bought by Walker I think? They had a lifetime warranty, and they honored mine for a set of Camaro AK5000 I had. Swapped me for a set of ceramic coateds, but I wasn't all that impressed. They sprayed molten aluminum on the tubes. Pre-dates the ceramic coatings you have now. Those in the pic are a cheap set of headers. The first set of AK's I had were wicked. Big tube, equal length, individual flanges. Rockin'! Let them go with a car I sold, so I bought another set. POS in comparison. If you've got 'em, might as well run 'em. Heddman is my favorite header manf., but Hookers are good, too. __________________ 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

02-16-2003, 10:40 PM	#11
GMC JUNKIE TOO THE QUICKER FIXERUPER Join Date: Jul 2002 Location: Ok Posts: 615	Dejavue those look exactly like the ones I took off of my truck last week rust silver paint I put on a set og coated dynomax headers exact same thing except for the flanges and they hang at a funny angle.

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