Will these headers fit?
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New User
Joined: May 2010
Posts: 22
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Will these headers fit?
Hello, My truck is a 1975 f100 4x4 with a 390 FE. I need a comformation that these headers will fit. Thanks
Hedman Hedders 89120 - Hedman Street Hedders - Application - SummitRacing.com
Hedman Hedders 89120 - Hedman Street Hedders - Application - SummitRacing.com
Elder User
Joined: Jan 2008
Posts: 618
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From: central oregon
i got rid of my headers it wasn't worth it for me . for one had to pull passenger side header to replace starter plus the constance leaks plus on my f-250 4x4 highboy i didn't notice a difference so i converted back to stock manifolds now nice an quiet an i still have gobbs an gobbs of power . well thats my 2 cents
Laughing Gas
Joined: Dec 2007
Posts: 1,052
Likes: 2
From: Alvarado, TX
Yup, those are the right ones. I've had the same ones on my '75 for 13 years with no problems. In fact I run nothing but headers on my vehicles since my engines would probably choke and die with stock manifolds. It's true that you have to pull the right one to remove the starter but how often does that happen? The key to preventing leaks using good gaskets and keeping the bolts tight. Throw away the gaskets that come with the headers and get a pair of these fel-pro's.
Fel-Pro Performance Z1442 - Fel-Pro Performance Exhaust Header Gasket Sets - Overview - SummitRacing.com
Stage 8 locking fasteners are a good idea too.
Fel-Pro Performance Z1442 - Fel-Pro Performance Exhaust Header Gasket Sets - Overview - SummitRacing.com
Stage 8 locking fasteners are a good idea too.
Fleet Owner
Joined: Dec 2009
Posts: 20,678
Likes: 83
From: NorCal
Right motor mount
Hello, My truck is a 1975 f100 4x4 with a 390 FE. I need a comformation that these headers will fit. Thanks
Hedman Hedders 89120 - Hedman Street Hedders - Application - SummitRacing.com
Hedman Hedders 89120 - Hedman Street Hedders - Application - SummitRacing.com
Visit www.hedman.com , search the PN, and download the instruction sheet for a preview.
Fleet Owner
Joined: Dec 2009
Posts: 20,678
Likes: 83
From: NorCal
Encountered an issue!
75F1004x4.. you might want to subscribe to my new thread on installing the 89120s. 'Ran into a problem with accessing the motor mount bolts per Hedman's instructions.
https://www.ford-trucks.com/forums/9...need-help.html
https://www.ford-trucks.com/forums/9...need-help.html
Fleet Owner
Joined: Dec 2009
Posts: 20,678
Likes: 83
From: NorCal
It fits, sort of.
75F1004x4... see my thread (linked above) with new pics on the 89120s. 'got the headers installed but omigosh what a job. Still gotta reinstall the starter and clutch Z-bar tomorrow...I am beat.
PM me if you have questions.
PM me if you have questions.
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