Fender well headers
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Freshman User
Joined: Jul 2009
Posts: 27
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From: East Mesa aZ.
Fender well headers
It's time to replace my 14 year old chassis exit headers. I'm looking at using fender well exit. What are the pros and cons on this type header?
79 F-150,400,T-18.
79 F-150,400,T-18.
Fleet Mechanic
Joined: Nov 2010
Posts: 1,501
Likes: 1
From: Axtell, TX
Pros would be ease of exhaust routing, better starter access, cool factor. Cons, a little inner fender trimming..that's all I can think of. Maybe someone has had some bad luck with them but the people I know that have gone to them say they wouldn't go back.
Laughing Gas
Joined: Apr 2001
Posts: 1,191
Likes: 4
From: West Union, OH USA
I have a least one picture in my 78 gallery of mine. They are the L&L coated fenderwell exit headers. They still get pretty hot, I'm still considering wrapping them some in the engine compartment. There is some wiring on the driver side that runs under the cab that worries me. Very good construction, and exhaust is a breeze. I can try to get some more pics and upload them from my 56K dial-up. Be patient. Haha. You do need to have the engine out to install them.
Moderator & parts slinger
Joined: Feb 2007
Posts: 50,132
Likes: 5,777
From: S/W Missouri, Polk county
No more fighting to get exhaust around the xmsn cross member. Cheaper and easier exhaust system all together. Their will be some more input on where to locate from folks on here.
Get the heating element, for the most part outa the eng compartment. I have no 2wd fenderwell experience, but I will NEVER have chassis exits on a 4x4 again.
No more cracked exhaust manifolds, a little help in the power dept.
Get the heating element, for the most part outa the eng compartment. I have no 2wd fenderwell experience, but I will NEVER have chassis exits on a 4x4 again.
No more cracked exhaust manifolds, a little help in the power dept.
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Moderator & parts slinger
Joined: Feb 2007
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From: S/W Missouri, Polk county
pics
Sorry I hit post before attach, pic #1 I had to trim like 2" or 3" on each side of the metal inner liner.
These are on a 79 F250 4x4 351M, Hedman brand.
pic #2 Header collector on right, end of exhaust on left, could of run turn downs but it getting a flat bed anyway.
='s LOUD MUD TRUCK
These are on a 79 F250 4x4 351M, Hedman brand.
pic #2 Header collector on right, end of exhaust on left, could of run turn downs but it getting a flat bed anyway.
='s LOUD MUD TRUCK
Posting Guru
Joined: Nov 2008
Posts: 1,937
Likes: 2
From: wyoming
headman headers
fenderwell exit 351m/400 #89360 headman headers. 562-921-0404 ask for lee in tech if any questions. Was just talkin to him this morning on these fenderwell headers. tell lee robert from wyoming sent you!! They are 1.625 ports and long tube setup. Great for around 400hrspwr and down engines and towing applications. Yes I run bigblock fenderwell headers also for over 20yrs L and L headers. No regrets, easier on starters and working around tranny/transfer. run a good exhaust gskt not PAPER! paper will blow out and have to do it over again for sure. also once you install new headers get hot and then retorque again once they cool down. don't wait a week to retorque same day or the next day! they move around a little and a retorque is required with any header, my personal experience.On the headman headers will need to put a good header paint on or powder coat or something better than the black paint thats on them!
Freshman User
Joined: May 2011
Posts: 41
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From: tucson az
will thoes headers (89360 headman headers) fit my 460 and i do not have a lifted 4x4 will they still work in my truck i do not mind re-routing my brake lines if need be, Ill more than likely wrap them in headerwrap also...
Freshman User
Joined: May 2011
Posts: 41
Likes: 0
From: tucson az
Sorry I hit post before attach, pic #1 I had to trim like 2" or 3" on each side of the metal inner liner.
These are on a 79 F250 4x4 351M, Hedman brand.
pic #2 Header collector on right, end of exhaust on left, could of run turn downs but it getting a flat bed anyway.
='s LOUD MUD TRUCK
These are on a 79 F250 4x4 351M, Hedman brand.
pic #2 Header collector on right, end of exhaust on left, could of run turn downs but it getting a flat bed anyway.
='s LOUD MUD TRUCK