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Will these headers fit Gt40p heads

  • Thread starter Thread starter Ian Ranchero
  • Start date Start date Mar 8, 2019
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    289 headers tri-y

Ian Ranchero

New Member
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Longmont Co
Mar 8, 2019
#1
  • Mar 8, 2019
  • #1
I have a brand new set of headers and wondering if anyone has used these headers on GT40P heads? These are the headers:

https://www.jegs.com/i/Speedmaster/746/PCE316.1044/10002/-1
 

General karthief

wonder how much it would cost to ship you a pair
20+ Year Stangneter
Aug 25, 2016
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polk county florida
Mar 8, 2019
#2
  • Mar 8, 2019
  • #2
What are you working on? Fox?
 

Ian Ranchero

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Mar 8, 2019
#3
  • Mar 8, 2019
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Its a 289 in my 67 ranchero with 3-speed top loader
 

General karthief

wonder how much it would cost to ship you a pair
20+ Year Stangneter
Aug 25, 2016
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polk county florida
Mar 8, 2019
#4
  • Mar 8, 2019
  • #4
The members here in the classic forums may know
 

STEVE PATTON

I smell a conspiracy
Jan 6, 2019
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ohio
Mar 8, 2019
#5
  • Mar 8, 2019
  • #5
if your question is will they bolt to the head[bolt&port spacing] buy header gaskets for the heads and match them to the header flange ,they can be returned.
 

General karthief

wonder how much it would cost to ship you a pair
20+ Year Stangneter
Aug 25, 2016
27,899
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polk county florida
Mar 8, 2019
#6
  • Mar 8, 2019
  • #6
The bolt pattern and exhaust port spacing did not change so those headers will bolt to gt40p heads, you may still have trouble with some of the plugs/ wires because the plug angle is different on the p heads,
 

STEVE PATTON

I smell a conspiracy
Jan 6, 2019
201
89
53
ohio
Mar 8, 2019
#7
  • Mar 8, 2019
  • #7
good point....but,who needs plugs&wires?
 
Reactions: General karthief

General karthief

wonder how much it would cost to ship you a pair
20+ Year Stangneter
Aug 25, 2016
27,899
10,554
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polk county florida
Mar 9, 2019
#8
  • Mar 9, 2019
  • #8
Thats the spirit!
 
F

Fireracer34

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Prunedale, CA
Mar 25, 2020
#9
  • Mar 25, 2020
  • #9
Ian Ranchero said:
I have a brand new set of headers and wondering if anyone has used these headers on GT40P heads? These are the headers:

https://www.jegs.com/i/Speedmaster/746/PCE316.1044/10002/-1
Click to expand...
I just wanted to share, I'm not sure about those but these will fit a GT40P heads. Sanderson Headers FF3GTS-SEC. See the attached pictures.
 

Attachments

  • Drivers Side GT40P Headers (2).webp
    205.9 KB · Views: 609
  • Passenger Side GT40P Heads and Headers (2).webp
    198.3 KB · Views: 555

General karthief

wonder how much it would cost to ship you a pair
20+ Year Stangneter
Aug 25, 2016
27,899
10,554
203
polk county florida
Mar 29, 2020
#10
  • Mar 29, 2020
  • #10
Ian Ranchero said:
Its a 289 in my 67 ranchero with 3-speed top loader
Click to expand...
Those headers will be problematic with P heads, hell you're gonna have problems with the plug angle with any header on that ranchero, maybe the shorty style headers from mac for a fox body will work but no guarantee. I would use a different set of heads.
 
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