Will these headers fit? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

bigdumbhick · 07-28-2008, 02:35 PM

I'm looking to put headers on my old truck. 1971 GMC 307 auto-trans.

I found these on ebay http://tinylink.com/?ZACRMld5Sk but I don't know if they will fit. The angled plugs question is an unknown.

If they won't fit, does anybody have a lead on a headers that will fit that won't bankrupt me? (I'm currently unemployed)

Typically, I am doing this all ass-backwards. I just put dual exhausts (w/ turbo tubes) on. That's when I found out about cracks in my exhaust manifolds. So if I go with headers, I'll have to get the exhaust re-worked as well. It never ends.

d10s69c10 · 07-28-2008, 03:41 PM

Link didnt work for me...

but a quick easy fix would be hit a junk yard and find something that will fit.

cause without reworking your Tubes ide assume you would need shorty headers wich IMO is kinda a waste with all the room under your hood with the addition of running into your Linkages.

bigdumbhick · 07-28-2008, 03:50 PM

http://cgi.ebay.com/ebaymotors/SBC-2...mZ230273892832

or http://tinyurl.com/676hv7

d10s69c10 · 07-28-2008, 03:55 PM

That Worked.

They do look like a very good deal.

are both of your Manifolds identical on both side as far as the collector is concerned? and i could not say for sure they would fit or not but with all the hardware givin in the add i dont see it being hard to make them work.

I checked the Sellers feedback looks like he sells alot of these and i see no complaints as far as quality but i would guess they are not going to last a life time.

as for the SPark plugs i assume you have straight plugs. if your motor is stock.

bigdumbhick · 07-28-2008, 04:00 PM

I have no idea. In fact, I have no idea what a "collector" is.

The auction says these will not work with angled plugs. What are angled plugs? How do I know if I got them?

chevy72blu · 07-28-2008, 04:21 PM

Quote:

Originally Posted by bigdumbhick

I have no idea. In fact, I have no idea what a "collector" is.

The auction says these will not work with angled plugs. What are angled plugs? How do I know if I got them?

The collector is the part at the back of the header/manifold with a flange. It connects all of the tubes into 1 chamber in the case of headers.

Do you plugs go perpendicularly into your block, or do they stick out at about a 30-45* angle?

07-28-2008, 02:35 PM	#1
bigdumbhick Registered User Join Date: Feb 2007 Location: Kernersville, NC USA Posts: 6	Will these headers fit? I'm looking to put headers on my old truck. 1971 GMC 307 auto-trans. I found these on ebay http://tinylink.com/?ZACRMld5Sk but I don't know if they will fit. The angled plugs question is an unknown. If they won't fit, does anybody have a lead on a headers that will fit that won't bankrupt me? (I'm currently unemployed) Typically, I am doing this all ass-backwards. I just put dual exhausts (w/ turbo tubes) on. That's when I found out about cracks in my exhaust manifolds. So if I go with headers, I'll have to get the exhaust re-worked as well. It never ends. __________________ Jeff W 1971 GMC Daily Driver Rustbucket Love, Peace, & Bacon Grease

07-28-2008, 03:41 PM	#2
d10s69c10 Built 4 Speed Join Date: May 2008 Location: Geneva FL Posts: 619	Re: Will these headers fit? Link didnt work for me... but a quick easy fix would be hit a junk yard and find something that will fit. cause without reworking your Tubes ide assume you would need shorty headers wich IMO is kinda a waste with all the room under your hood with the addition of running into your Linkages. __________________ 1969 C/10 Short Box: 496/T-56 in worx. "To Be Old And Wise, First You Must Be Young And Stupid"

07-28-2008, 03:50 PM	#3
bigdumbhick Registered User Join Date: Feb 2007 Location: Kernersville, NC USA Posts: 6	Re: Will these headers fit? http://cgi.ebay.com/ebaymotors/SBC-2...mZ230273892832 or http://tinyurl.com/676hv7 __________________ Jeff W 1971 GMC Daily Driver Rustbucket Love, Peace, & Bacon Grease Last edited by bigdumbhick; 07-28-2008 at 03:52 PM.

07-28-2008, 03:55 PM	#4
d10s69c10 Built 4 Speed Join Date: May 2008 Location: Geneva FL Posts: 619	Re: Will these headers fit? That Worked. They do look like a very good deal. are both of your Manifolds identical on both side as far as the collector is concerned? and i could not say for sure they would fit or not but with all the hardware givin in the add i dont see it being hard to make them work. I checked the Sellers feedback looks like he sells alot of these and i see no complaints as far as quality but i would guess they are not going to last a life time. as for the SPark plugs i assume you have straight plugs. if your motor is stock. __________________ 1969 C/10 Short Box: 496/T-56 in worx. "To Be Old And Wise, First You Must Be Young And Stupid" Last edited by d10s69c10; 07-28-2008 at 04:03 PM.

07-28-2008, 04:00 PM	#5
bigdumbhick Registered User Join Date: Feb 2007 Location: Kernersville, NC USA Posts: 6	Re: Will these headers fit? I have no idea. In fact, I have no idea what a "collector" is. The auction says these will not work with angled plugs. What are angled plugs? How do I know if I got them? __________________ Jeff W 1971 GMC Daily Driver Rustbucket Love, Peace, & Bacon Grease



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