Long tube header question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

olred68 · 03-12-2010, 08:11 AM

If I run longs tubes how low can I drop the frontend without the headers draging on everything?

Hottrucks · 03-12-2010, 08:27 AM

you can't ......I think the best solution is these then you can tuck things up pretty easy

http://www.kmjent.com/cart/product.p...8&cat=0&page=1

gmcdude · 03-12-2010, 09:01 AM

I have long tube headers on mine and they don,t drag, I have 4 inch drop up front, but I runing 20 inch wheeels.

Hottrucks · 03-12-2010, 09:09 AM

good point...now much drop are we talking here

Jim_PA · 03-12-2010, 09:49 AM

Sure, a shorty header is better than manifolds, but I wouldn't run those unless the world was coming to an end, and they were the last headers on earth.

Hottrucks · 03-12-2010, 10:16 AM

Quote:

Originally Posted by Jim_PA

Sure, a shorty header is better than manifolds, but I wouldn't run those unless the world was coming to an end, and they were the last headers on earth.

Ummmm...WOW...ummm why not they clear everything and get your exhaust above your frame rails..or is it a brand issue??

olred68 · 03-12-2010, 10:36 AM

its a money deal I have a set of long tubes and I want to drop it 3" so not sure what I should do

petey-pablo · 03-12-2010, 10:40 AM

I am running Long tubes with a 4 1/2inch front and 5inch rear drop and I have to be careful with speed bumps even going up into my garage slight incline the cement is uneven by alittle and hits the collecter,My temp fix is a 1/2inch piece of plywood that I drive up on the passenger side each time I go in and out of the garage

. If I knew how to weld I would cut 1 or 1 1/2 inches off each tube of the headders to bring them up, I think thats all I would need.

Jim_PA · 03-12-2010, 03:28 PM

Quote:

Originally Posted by Hottrucks

Ummmm...WOW...ummm why not they clear everything and get your exhaust above your frame rails..or is it a brand issue??

It's a performance issue. I don't care who makes them, shorty headers are just a step above ram horns.

See below for example. I'm sure this is one of many similar articles out there proving this point.

http://www.fourwheeler.com/techartic...ers/index.html

ShredSled · 03-12-2010, 04:22 PM

I'm kind of curious about this issue as well...

oh, and it seems those Gibson shorty headers are a very exteme example. The ones in that other link look more like mid-length, similar to Thorley Tri-Y's....

Jeffs70 · 03-12-2010, 06:04 PM

Quote:

Originally Posted by Jim_PA

It's a performance issue. I don't care who makes them, shorty headers are just a step above ram horns.

See below for example. I'm sure this is one of many similar articles out there proving this point.

http://www.fourwheeler.com/techartic...ers/index.html

so my new hugger headers would just be simply like running stock manifolds then ? vs long tube headers? that are causing a problem with lowering our trucks.

I had long tubes before when I had a 4" drop and they just about dragged every place. so I went to huggers and haven't tested them as of yet. but not that I would be out of money cause they was free lol.

GASoline71 · 03-12-2010, 06:35 PM

Quote:

Originally Posted by Jim_PA

It's a performance issue. I don't care who makes them, shorty headers are just a step above ram horns.

See below for example. I'm sure this is one of many similar articles out there proving this point.

http://www.fourwheeler.com/techartic...ers/index.html

Yep... headers are all about scavenging exhaust gasses quickly. Shorty's defeat the purpose.

I have plain ol' Heddman Street Hedders, full length... they tuck up along the frame pretty nice. They're the ones I'll be using when I drop the rear 4" and the fron about 2".

My Dad has the same headers on his 1970 C10 and that thing is lowered 5" in the back, and close to 3" in front. They don't drag...

Gary

olred68 · 03-12-2010, 06:47 PM

Well I have a set of flowtechs and I hope when I install they dont hang to low below the frame I want 2 1/2 drop spindles and 1" coils

Jeffs70 · 03-12-2010, 06:56 PM

Quote:

Originally Posted by olred68

Well I have a set of flowtechs and I hope when I install they dont hang to low below the frame I want 2 1/2 drop spindles and 1" coils

this is my issue I want the horsepower and no back pressure but then I dont want the headers to hang lower then the frame due to I am going to have 2 1/2 drop spindles and 3" drop coils in front. so that maybe an issue with headers unless I guess I fab my own or someone already sales them to not hang to much below the frame.

GASoline71 · 03-12-2010, 06:59 PM

Quote:

Originally Posted by olred68

Well I have a set of flowtechs and I hope when I install they dont hang to low below the frame I want 2 1/2 drop spindles and 1" coils

I tried Flowtechs on a 1967 C10 awhile back. The thing I didn't like about them is they have a slight downward angle at the very short collector. Made hooking up the exhaust a pain as I had to notch the tube slighty to get them to line up right.

They also dragged on speedbumps after I lowered it.

Gary

Strut · 03-12-2010, 07:46 PM

I had Hedmen's long tube headers on my 72. It has a 3 front/5 rear drop....

I plan on going lower so I changed the headers to Thorley's Tri Y headers....

Before

After

I also cut the rear cross member to run the exhaust through it....

Here is a picture of them side by side, you can see how much longer the Hedmans are:

Jeffs70 · 03-12-2010, 08:27 PM

Strut I am not sure its the pictures or not but in those pictures it looks to be as if those Thorley's Tri Y headers still stick down just as low below that tranny pan and frame as the Hedmans headers ?

big mike71 · 03-12-2010, 08:36 PM

The ones Big Al has on his truck do not hang down at all.

Strut · 03-12-2010, 09:02 PM

They do hang down, but there not near as low as the Hedmans. They dont hang down past the front cross member like the Hedmans.... These Thorley headers are the same part# as BigAls....

Jeffs70 · 03-12-2010, 09:20 PM

Quote:

Originally Posted by Strut

They do hang down, but there not near as low as the Hedmans. They dont hang down past the front cross member like the Hedmans.... These Thorley headers are the same part# as BigAls....

ok awesome just what I was wanting to know thank you

ShredSled · 03-12-2010, 10:06 PM

yeah, if you look at those photos relating how low they are to the A-arms, it looks like those Tri-Y's give you quite a bit more clearance compared to that lower most primary on the Hedman's.

Also something else I'm kind of wondering is, what is the primary diameter on those Hedmans? 1 3/4"? Might have been a bit too much for your motor, stealing low-end and putting it up top. Might notice some good low-end gains with those more mid-length and smaller dia. 1 5/8" primary Thorleys.

Jim_PA · 03-12-2010, 10:17 PM

Yep, the Tri-Y's are what I run too, and they definitely don't hang as low as the hookers I had on there before.

Might sell them though for some 1 3/4" long tubes to go with the 383. Still haven't decided. Not sure if it's worth it... leaning towards keeping the Tri-Y's.

Jeffs70 · 03-13-2010, 07:15 AM

I found some headers as I was doing some searching maybe you all can do something with these for laying frame also http://www.clearimageautomotive.com/...%20Headers.htm

ShredSled · 03-13-2010, 02:42 PM

Quote:

Originally Posted by Jeffs70

I found some headers as I was doing some searching maybe you all can do something with these for laying frame also http://www.clearimageautomotive.com/...%20Headers.htm

nice find! Those look very tucked!

Jeffs70 · 03-13-2010, 03:40 PM

Yeah I am thinking on getting those my self, wow they are pricey any more for headers.

03-12-2010, 08:11 AM	#1
olred68 Registered User Join Date: Feb 2009 Location: Knoxville Posts: 207	Long tube header question If I run longs tubes how low can I drop the frontend without the headers draging on everything? __________________ Brandon

03-12-2010, 08:27 AM	#2
Hottrucks Redefining LowBudget Join Date: Mar 2009 Location: lebanon Cow Hampshire Posts: 4,538	Re: Long tube header question you can't ......I think the best solution is these then you can tuck things up pretty easy http://www.kmjent.com/cart/product.p...8&cat=0&page=1 __________________ 1970 C10 CST fleetside 472 ....big dreams little cash... http://67-72chevytrucks.com/vboard/s...d.php?t=335721 SunShine Syndicate.. Mikes Sandwich Fair Run OCT 8th 2011 http://www.thesandwichfair.com/html/...auto_show.html

03-12-2010, 09:01 AM	#3
gmcdude Registered User Join Date: Jul 2009 Location: Abingdon, Virginia Posts: 300	Re: Long tube header question I have long tube headers on mine and they don,t drag, I have 4 inch drop up front, but I runing 20 inch wheeels.

03-12-2010, 09:09 AM	#4
Hottrucks Redefining LowBudget Join Date: Mar 2009 Location: lebanon Cow Hampshire Posts: 4,538	Re: Long tube header question good point...now much drop are we talking here __________________ 1970 C10 CST fleetside 472 ....big dreams little cash... http://67-72chevytrucks.com/vboard/s...d.php?t=335721 SunShine Syndicate.. Mikes Sandwich Fair Run OCT 8th 2011 http://www.thesandwichfair.com/html/...auto_show.html

03-12-2010, 09:49 AM	#5
Jim_PA Registered User Join Date: May 2005 Location: PA Posts: 2,696	Re: Long tube header question Sure, a shorty header is better than manifolds, but I wouldn't run those unless the world was coming to an end, and they were the last headers on earth.

03-12-2010, 10:36 AM	#7
olred68 Registered User Join Date: Feb 2009 Location: Knoxville Posts: 207	Re: Long tube header question its a money deal I have a set of long tubes and I want to drop it 3" so not sure what I should do __________________ Brandon

03-12-2010, 10:40 AM	#8
petey-pablo "THE GREEN GOBLIN" Join Date: Mar 2008 Location: Fremont Ca. Posts: 1,025	Re: Long tube header question I am running Long tubes with a 4 1/2inch front and 5inch rear drop and I have to be careful with speed bumps even going up into my garage slight incline the cement is uneven by alittle and hits the collecter,My temp fix is a 1/2inch piece of plywood that I drive up on the passenger side each time I go in and out of the garage. If I knew how to weld I would cut 1 or 1 1/2 inches off each tube of the headders to bring them up, I think thats all I would need. __________________ Petey-pablo "THE GREEN GOBLIN" 1972 Cheyenne 10 Short Fleet Side Front 2.5inch Spindles with 2inch Springs Rear 4inch drop Springs. 454BBC TH400,Posi 1971 Cheyenne 10 Long Fleet Side 454BBC TH350,Posi Sold Drive it like you stole it! Petey-pablo@sbcglobal.net

03-12-2010, 04:22 PM	#10
ShredSled Registered User Join Date: Mar 2010 Location: Michigan Posts: 159	Re: Long tube header question I'm kind of curious about this issue as well... oh, and it seems those Gibson shorty headers are a very exteme example. The ones in that other link look more like mid-length, similar to Thorley Tri-Y's.... __________________ get it! Last edited by ShredSled; 03-12-2010 at 04:24 PM.

03-12-2010, 06:47 PM	#13
olred68 Registered User Join Date: Feb 2009 Location: Knoxville Posts: 207	Re: Long tube header question Well I have a set of flowtechs and I hope when I install they dont hang to low below the frame I want 2 1/2 drop spindles and 1" coils __________________ Brandon

03-12-2010, 07:46 PM	#16
Strut Registered User Join Date: Oct 2009 Location: Corbin Ky Posts: 247	Re: Long tube header question I had Hedmen's long tube headers on my 72. It has a 3 front/5 rear drop.... I plan on going lower so I changed the headers to Thorley's Tri Y headers.... Before After I also cut the rear cross member to run the exhaust through it.... Here is a picture of them side by side, you can see how much longer the Hedmans are: __________________ 1972 Chevy C10 SWB 1999 GMC Sonoma Mini 2008 Yamaha R1 2007 Harley Nightster

03-12-2010, 08:27 PM	#17
Jeffs70 Registered User Join Date: Oct 2007 Location: Valley Springs, Ca Posts: 857	Re: Long tube header question Strut I am not sure its the pictures or not but in those pictures it looks to be as if those Thorley's Tri Y headers still stick down just as low below that tranny pan and frame as the Hedmans headers ? Last edited by Jeffs70; 03-12-2010 at 08:28 PM.

03-12-2010, 08:36 PM	#18
big mike71 Registered User Join Date: Mar 2009 Location: independence mo Posts: 2,111	Re: Long tube header question The ones Big Al has on his truck do not hang down at all. __________________ I'm not as good as I once was, But I'm as good once as I ever was.

03-12-2010, 09:02 PM	#19
Strut Registered User Join Date: Oct 2009 Location: Corbin Ky Posts: 247	Re: Long tube header question They do hang down, but there not near as low as the Hedmans. They dont hang down past the front cross member like the Hedmans.... These Thorley headers are the same part# as BigAls.... __________________ 1972 Chevy C10 SWB 1999 GMC Sonoma Mini 2008 Yamaha R1 2007 Harley Nightster Last edited by Strut; 03-12-2010 at 09:03 PM.

03-12-2010, 10:06 PM	#21
ShredSled Registered User Join Date: Mar 2010 Location: Michigan Posts: 159	Re: Long tube header question yeah, if you look at those photos relating how low they are to the A-arms, it looks like those Tri-Y's give you quite a bit more clearance compared to that lower most primary on the Hedman's. Also something else I'm kind of wondering is, what is the primary diameter on those Hedmans? 1 3/4"? Might have been a bit too much for your motor, stealing low-end and putting it up top. Might notice some good low-end gains with those more mid-length and smaller dia. 1 5/8" primary Thorleys. __________________ get it!

03-12-2010, 10:17 PM	#22
Jim_PA Registered User Join Date: May 2005 Location: PA Posts: 2,696	Re: Long tube header question Yep, the Tri-Y's are what I run too, and they definitely don't hang as low as the hookers I had on there before. Might sell them though for some 1 3/4" long tubes to go with the 383. Still haven't decided. Not sure if it's worth it... leaning towards keeping the Tri-Y's.



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03-13-2010, 07:15 AM	#23
Jeffs70 Registered User Join Date: Oct 2007 Location: Valley Springs, Ca Posts: 857	Re: Long tube header question I found some headers as I was doing some searching maybe you all can do something with these for laying frame also http://www.clearimageautomotive.com/...%20Headers.htm

03-13-2010, 03:40 PM	#25
Jeffs70 Registered User Join Date: Oct 2007 Location: Valley Springs, Ca Posts: 857	Re: Long tube header question Yeah I am thinking on getting those my self, wow they are pricey any more for headers.

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