header help?
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Tuned
Joined: Sep 2024
Posts: 251
Likes: 79
header help?
Hey fellas
I'm looking at these headers for this 74 F100 build we're doing. I'm in Canada so this is a good site for me. I plan on having from the header back custom bent with flowmaster 40s straight pipe to the rear.
flowtech headers
thanks for any experience you have to share
I'm looking at these headers for this 74 F100 build we're doing. I'm in Canada so this is a good site for me. I plan on having from the header back custom bent with flowmaster 40s straight pipe to the rear.
flowtech headers
thanks for any experience you have to share
Moderator & parts slinger
Joined: Feb 2007
Posts: 50,096
Likes: 5,758
From: S/W Missouri, Polk county
Make sure you are 100% ready to install them. Brake lines migth have to be moved/rerouted where they come down from the master cylinder. Oil pan dip stick (if on the side of the oil pan) migth have to be removed for install, then put back inbetween the tubes.
Good luck NOT breaking a exhaust manifold bolt. Clean and thread chase the bolt holes with a proper size tap. Get new attachment hdwr, either stainless or actual header bolts and use some Nordloc washers. Torque hdwr properly, pattern wise and proper min and max. And some say you can do a hot and or cold torque run, at least 3 times. I do not want to open that can or worms, so just do your own research about that.
Get some Remflex headers gaskets and or follow their directions. One and done. Make sure the heads, the headers, the gaskets and even your hands (come installation of the gaskets and headers) are oil/grease/PB plaster/WD40/PB and J and Molsen FREE. Chemicials on the gaskets can cause them to burn out early.
When the muffler shop make the connections at the header flange, you can also use Remflex collector gaskets. Or just some high temp RTV.
Remflex. https://catalog.remflex.com/category_s/11.htm
V band clamp gaskets. https://catalog.remflex.com/category_s/300.htm
Good luck NOT breaking a exhaust manifold bolt. Clean and thread chase the bolt holes with a proper size tap. Get new attachment hdwr, either stainless or actual header bolts and use some Nordloc washers. Torque hdwr properly, pattern wise and proper min and max. And some say you can do a hot and or cold torque run, at least 3 times. I do not want to open that can or worms, so just do your own research about that.
Get some Remflex headers gaskets and or follow their directions. One and done. Make sure the heads, the headers, the gaskets and even your hands (come installation of the gaskets and headers) are oil/grease/PB plaster/WD40/PB and J and Molsen FREE. Chemicials on the gaskets can cause them to burn out early.
When the muffler shop make the connections at the header flange, you can also use Remflex collector gaskets. Or just some high temp RTV.
Remflex. https://catalog.remflex.com/category_s/11.htm
V band clamp gaskets. https://catalog.remflex.com/category_s/300.htm
Cargo Master
Joined: May 2011
Posts: 2,387
Likes: 138
From: Northern California
I’d like to suggest you research Black Widow mufflers. I’m running race venoms. They sound great. They don’t really muffle but they do clean up the sound quite well. Made in California. They have quieter versions if that’s your thing.
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