460 header issue
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Elder User
Joined: Feb 2007
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From: scaggsville, md
460 header issue
So i got a set of second hand new headers for my 77 150. it had a big block originally but the po replaced it with an 84 460. the headers are the correct one for the truck. the driver side fit fine with a minimal amount of swear words. the passenger side is a whole nother story. the front tube is hitting the motor mount. i nees to come striaght forward another two inches. all the other angles are fine. just cant get it far enough forward. any advise other than notching the mount? thanks
Moderator & parts slinger
Joined: Feb 2007
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From: S/W Missouri, Polk county
I have seen the mount notch trick, and I personally do not like the idea.
But if you are only cutting 2 inches and have plenty of mount material left to weld a reinforcement plate to, then try it I guess.
At least one went on......is the mount tower correctily installed on the side????
But if you are only cutting 2 inches and have plenty of mount material left to weld a reinforcement plate to, then try it I guess.
At least one went on......is the mount tower correctily installed on the side????
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Elder User
Joined: Feb 2007
Posts: 898
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From: scaggsville, md
I dont like the idea of cutting into a motor mount. the longer tower is on the driver side. is this correct. i didnt put the motor in. Might try loosening the mounts and wiggle it and see if i can get it then. and other ideas are welcome.
Junior User
Joined: Nov 2011
Posts: 54
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From: El Centro, Ca
mock up a spacer between the head and the actual pipes. might be online somewhere already manufactured. i know they do this for other set ups..
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Elder User
Joined: Feb 2007
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From: scaggsville, md
The issue isnt the disantce between the head and flange. it is that it will not slide far enough forward. the front tube is hitting the mount tower. i found a set of mounts from lmc part number 48-2092. if it is what i think it is everything should clear but they offered no help when i called and asked. anyone seeb these?
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From: starship enterprise
Well, I hate to be a disappointment, but from your post I think your truck is a 4x4 correct? If so then there was no trucks that left ford in 1977 that had a 460 and 4x4. Yours had a 400, 351m, or maybe a I6 but your headers are not for a 4x4 460 f150 1977 conversion. I would recommend some conversion mounts and some L&L headers. I use the chassis exit and they fit well other than gaskets 3 times a year. Your headers are for a 74-79 f100-350 pickup with a 460, factory not retrofit. As far as notching the mount, I probably would try it, if it isn't a clean one owner truck, obviously not all original, but try it and beef it back up with your welder.
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