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1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks Discuss the Early Eighties Bullnose Ford Truck

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  #631  
Old 08-14-2013, 10:41 AM
kenmt kenmt is offline
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I ground the bellhousing and used an allenhead bolt on the stock exhaust manifold on my '77F150 351M/ZF NP 205 swap.
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  #632  
Old 08-14-2013, 10:59 AM
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Originally Posted by Gary Lewis View Post
Hadn't thought about an early Bronco's clearance. Good question! I was told that I couldn't use factory manifolds, that I'd have to use headers. But, if headers clear the tranny better then you will be better off with factory manifolds as they are obviously hugging the tranny closer.

It'll take me a bit to pull the file. It is currently in TurboCAD format, but I can send it as a pdf of the drawings.
Hmm maybe I should shoot some pics of the current setup and see what you think.

With the 400 currently in the bronco (TM build) I hear running aftermarket headers don't gain much over stock manifolds - which iam currently running. I think most aftermarket headers (i dont think there is a wide selection) will be a problem since the Early Bronco have such a narrow frame.

Aftermarket headers would definitely be an unwelcome expense...

I will post up over with the Bronco guys and see what they have to say, there are a few running a 400 in theirs..

Thanks, PDF's would be fine i would imagine. I will have to find someone to do the work but living in the city I shouldn't have much of a problem.
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  #633  
Old 08-14-2013, 11:55 AM
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The small gain that headers give really don't justify the headaches and expense they cause.That's just my 0.02. Dodge, Ford and Chewy didn't have any problems making plenty of HP and torque back in the 60's and 70's with cast iron exhaust manifolds.

Ask Gary Lewis what he thinks about my headers in the 87 Bronco.
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  #634  
Old 08-14-2013, 12:13 PM
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Originally Posted by bruno2 View Post
The small gain that headers give really don't justify the headaches and expense they cause.That's just my 0.02. Dodge, Ford and Chewy didn't have any problems making plenty of HP and torque back in the 60's and 70's with cast iron exhaust manifolds.

Ask Gary Lewis what he thinks about my headers in the 87 Bronco.
If you EVER thought you wanted headers then your task is to change plugs on his Wheezer. And IF you get that done then try the impossible - take a compression reading. Whatever model he has should be recalled as being unusable.
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  #635  
Old 08-14-2013, 12:33 PM
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Yeah, we spent the best part of a day just trying to pull the plugs and take compression readings. If I remember right we ended up pulling the driver side header to get to the work. BIG PAIN IN THE BUTT!!!
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  #636  
Old 08-14-2013, 03:51 PM
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I don't recall any major problems having headers on my 1981 F350 4x4 with a 400....
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  #637  
Old 08-14-2013, 05:26 PM
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It depends on the engine, the heads, and the header. So, what headers are you running?
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Worst fear: I die and my wife sells my trucks for what I've told her I have in them.
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  #638  
Old 08-14-2013, 06:26 PM
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Congradulations on an excellent job/description on a M/ZF swap Gary.
I wish I could have been more helpful when I first described my 77F150 351M/NP205 4 speed to ZF conversion.I guess the one thing I did achieve way back then was to prove that it was possible.I'm not saying I was the first person to ever do the swap,but if someone had successfully done one,they sure were not sharing it online!
Haven't been on this site for awhile.Glad to hear that you and Bruno are still in the mix.
Once again,congrads on a fantastic article.
kenmt
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  #639  
Old 08-14-2013, 08:30 PM
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Originally Posted by kenmt View Post
Congradulations on an excellent job/description on a M/ZF swap Gary.
I wish I could have been more helpful when I first described my 77F150 351M/NP205 4 speed to ZF conversion.I guess the one thing I did achieve way back then was to prove that it was possible.I'm not saying I was the first person to ever do the swap,but if someone had successfully done one,they sure were not sharing it online!
Haven't been on this site for awhile.Glad to hear that you and Bruno are still in the mix.
Once again,congrads on a fantastic article.
kenmt
Thanks, Ken. You helped by proving it could be done.

As for Bruno, he doesn't get to play truck as much as I think he wants to. Has something called a "business" he runs and has to go to "work". But he must be good as he gets a few hours off every once in a while.
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Rusty: '81 F150 Ranger XLT 4x4 w/a 351M, RV cam, Performer carb & intake, C6, & 3.50's
Dad's: '81 F150 Ranger XLT 4x4: Down for restomod: Full-roller "stroked 351M" w/Trick Flow heads, Weiand intake, Street Demon 750/ZF5/3.50 gears w/Kevlar clutches
Worst fear: I die and my wife sells my trucks for what I've told her I have in them.
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  #640  
Old 08-16-2013, 12:58 PM
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Files & Pictures

Here are the as-built drawings in both pdf and jpg format. Since I'm not a machinist nor a draftsman the drawings probably don't have all of the needed details, so please let me know if more is needed.

But, one more thing - note the .150" chamfer on the spacer where it meets the flywheel. I chucked the flywheel up on the lathe and increased the chamfer on it so I could have a larger chamfer on the spacer - and therefore more "meat" between the outside and inside corners.

And, I should point out that it is critical that the front and back faces of the spacer be truly parallel to each other. To ensure that I used a process suggested by Ken Blythen where I turned the front face and the pocket of the spacer and then removed it from the lathe. Then I chucked up another piece of material and created a faux crank with a through hole. Then I mounted the partially-finished spacer on the faux crank, w/o removing it from the chuck, by using a through-bolt. Then I turned the rear face of the spacer to size. Sure enough, when I mounted the flywheel to the crank via the spacer the runout on the edge of the flywheel was well within factory spec.
Attached Images
  
Attached Images
File Type: pdf Spacer Complete.pdf (36.4 KB, 17 views)
File Type: pdf Spacer.pdf (27.9 KB, 16 views)
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Rusty: '81 F150 Ranger XLT 4x4 w/a 351M, RV cam, Performer carb & intake, C6, & 3.50's
Dad's: '81 F150 Ranger XLT 4x4: Down for restomod: Full-roller "stroked 351M" w/Trick Flow heads, Weiand intake, Street Demon 750/ZF5/3.50 gears w/Kevlar clutches
Worst fear: I die and my wife sells my trucks for what I've told her I have in them.

Last edited by Gary Lewis; 08-16-2013 at 01:05 PM. Reason: additional info
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  #641  
Old 08-16-2013, 02:46 PM
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Quote:
Originally Posted by Gary Lewis View Post
Here are the as-built drawings in both pdf and jpg format. Since I'm not a machinist nor a draftsman the drawings probably don't have all of the needed details, so please let me know if more is needed.

But, one more thing - note the .150" chamfer on the spacer where it meets the flywheel. I chucked the flywheel up on the lathe and increased the chamfer on it so I could have a larger chamfer on the spacer - and therefore more "meat" between the outside and inside corners.

And, I should point out that it is critical that the front and back faces of the spacer be truly parallel to each other. To ensure that I used a process suggested by Ken Blythen where I turned the front face and the pocket of the spacer and then removed it from the lathe. Then I chucked up another piece of material and created a faux crank with a through hole. Then I mounted the partially-finished spacer on the faux crank, w/o removing it from the chuck, by using a through-bolt. Then I turned the rear face of the spacer to size. Sure enough, when I mounted the flywheel to the crank via the spacer the runout on the edge of the flywheel was well within factory spec.
This is excellent.. thank you. I will print everything out and see if a machinist can make this happen from your PDF's.
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  #642  
Old 08-16-2013, 02:54 PM
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Welcome. And please let us know how it goes and what he charges to do it. Also, do you still have my PM of the things I did? All the bullet points? I didn't keep it and probably should post them here with a few mod's.
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Dad's: '81 F150 Ranger XLT 4x4: Down for restomod: Full-roller "stroked 351M" w/Trick Flow heads, Weiand intake, Street Demon 750/ZF5/3.50 gears w/Kevlar clutches
Worst fear: I die and my wife sells my trucks for what I've told her I have in them.
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  #643  
Old 08-16-2013, 02:58 PM
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Originally Posted by Gary Lewis View Post
Welcome. And please let us know how it goes and what he charges to do it. Also, do you still have my PM of the things I did? All the bullet points? I didn't keep it and probably should post them here with a few mod's.
No i didn't get a PM, just the list you posted in this thread

http://www.ford-trucks.com/forums/11...l#post13431963
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  #644  
Old 08-16-2013, 03:29 PM
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Originally Posted by landshark99 View Post
No i didn't get a PM, just the list you posted in this thread

http://www.ford-trucks.com/forums/11...l#post13431963
Duh! No wonder I didn't have it in my Sent Mail. I really do think my memory used to be better, but I can't remember for sure. Thanks!
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Dad's: '81 F150 Ranger XLT 4x4: Down for restomod: Full-roller "stroked 351M" w/Trick Flow heads, Weiand intake, Street Demon 750/ZF5/3.50 gears w/Kevlar clutches
Worst fear: I die and my wife sells my trucks for what I've told her I have in them.
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  #645  
Old 08-16-2013, 03:31 PM
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Duh! No wonder I didn't have it in my Sent Mail. I really do think my memory used to be better, but I can't remember for sure. Thanks!
no worries thanks again! I will start a build thread when I begin.. after my vacation
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Old 08-16-2013, 03:31 PM
 
 
 
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