400 headers
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Freshman User
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400 headers
I have asked here before about headers for a 1984 1/2 ton pickup 2 wheel drive.
I noticed an page 144 of LCM catalog #FD 29 that they sell a set of headers for a 80-82 with a 400 engine, had anyone tried them ??
Thanks
Jim
I noticed an page 144 of LCM catalog #FD 29 that they sell a set of headers for a 80-82 with a 400 engine, had anyone tried them ??
Thanks
Jim
Logistics Pro
Joined: Jun 2008
Posts: 4,990
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From: Florida
The Hedman Hedders?
You'd be better off asking about Hedman Hedders in the exhaust section of the forum as a general question on the company's reputation concerning quality. You're not gonna get any good answers on HP gains here since most of our 351M/400 guys haven't really rebuilt their motors to net them any respectable gains.
You'd be better off asking about Hedman Hedders in the exhaust section of the forum as a general question on the company's reputation concerning quality. You're not gonna get any good answers on HP gains here since most of our 351M/400 guys haven't really rebuilt their motors to net them any respectable gains.
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From: Virginia
Well, I am a header hater. No matter what car or truck I use them on, I have always had trouble with them. You can't get to the starter and it overheats the starter and it won't start in hot weather. Sometimes you can get to the spark plugs, sometimes you can't. There is no where to mount the dipstick tube unless you rig something. They hang too low and get in the way of tranny maintenance. And if you get the cheap .042 thick headers, they rust out if you drive in the salt.
I can pretty much guarantee you will have at least a couple of the problems above, even though I have never used them on that engine in these type trucks. As far as power gains, I have never noticed a lot, but it does make the exhaust sound louder.
I can pretty much guarantee you will have at least a couple of the problems above, even though I have never used them on that engine in these type trucks. As far as power gains, I have never noticed a lot, but it does make the exhaust sound louder.
Logistics Pro
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From: Florida
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Moderator
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From: Virginia
No header manufacturer will honor their warrenty on the headers if you wrap them. It disintegrates the metal in the headers.
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Logistics Pro
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From: Florida
BTW, most of the cases I've heard about concerning headers and no-starts were on GM and other vehicles with Solenoids mounted on the starter. I've never really heard about the starter itself heating up.
Logistics Pro
Joined: Jun 2008
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From: Florida
Something is awry here.
One, 1984 trucks shouldn't have a 400 in them. Only options available in an F150 were the 300 I6, 302 V8, and the 351 V8. There may have been a V6 offered too, but we don't really talk about that mistake of a motor here. If the motor was swapped in, check to make sure it was done correctly. Many times, different year and/or originally unavailable engines are made to fit any way they can go in, which isn't a good thing if you're a stickler for originality.
Two, the AOD should have a small block transmission bell housing pattern. The 400 has a big block bell housing pattern, and it lamen's terms, an AOD will not fit a 400 without an adapter. Check to see if maybe you have a C6.
One, 1984 trucks shouldn't have a 400 in them. Only options available in an F150 were the 300 I6, 302 V8, and the 351 V8. There may have been a V6 offered too, but we don't really talk about that mistake of a motor here.
If the motor was swapped in, check to make sure it was done correctly. Many times, different year and/or originally unavailable engines are made to fit any way they can go in, which isn't a good thing if you're a stickler for originality.Two, the AOD should have a small block transmission bell housing pattern. The 400 has a big block bell housing pattern, and it lamen's terms, an AOD will not fit a 400 without an adapter. Check to see if maybe you have a C6.
FTE Legend
Joined: Jul 2010
Posts: 32,875
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From: Northeast, OK
Something is awry here.
One, 1984 trucks shouldn't have a 400 in them. Only options available in an F150 were the 300 I6, 302 V8, and the 351 V8. There may have been a V6 offered too, but we don't really talk about that mistake of a motor here. If the motor was swapped in, check to make sure it was done correctly. Many times, different year and/or originally unavailable engines are made to fit any way they can go in, which isn't a good thing if you're a stickler for originality.
Two, the AOD should have a small block transmission bell housing pattern. The 400 has a big block bell housing pattern, and it lamen's terms, an AOD will not fit a 400 without an adapter. Check to see if maybe you have a C6.
One, 1984 trucks shouldn't have a 400 in them. Only options available in an F150 were the 300 I6, 302 V8, and the 351 V8. There may have been a V6 offered too, but we don't really talk about that mistake of a motor here.
If the motor was swapped in, check to make sure it was done correctly. Many times, different year and/or originally unavailable engines are made to fit any way they can go in, which isn't a good thing if you're a stickler for originality.Two, the AOD should have a small block transmission bell housing pattern. The 400 has a big block bell housing pattern, and it lamen's terms, an AOD will not fit a 400 without an adapter. Check to see if maybe you have a C6.
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Freshman User
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400 headers
HI:
Thanks to all but when I built my "T" bucket I put a 400 in with a c-4 & did like it so when I wanted to do the 84 I bought another 400 & had it gone thru & the bought bell housing to mate the 400 to the AOD & am having a shop do the AOD now & I am the going to put the 400& the AOD in the truck.It took me a year & one half to build the "T" bucket & I still have it .
Again Thanks as I am learning more about this Fourm every day with a lot of good help.
Jim
Thanks to all but when I built my "T" bucket I put a 400 in with a c-4 & did like it so when I wanted to do the 84 I bought another 400 & had it gone thru & the bought bell housing to mate the 400 to the AOD & am having a shop do the AOD now & I am the going to put the 400& the AOD in the truck.It took me a year & one half to build the "T" bucket & I still have it .
Again Thanks as I am learning more about this Fourm every day with a lot of good help.
Jim
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