78 Bronco Build (56k warning) - Ford Bronco Forum
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post #1 of 269 (permalink) Old 03-12-2012, 01:16 AM Thread Starter
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Bronco Info: 466/c6/np205, 6" Deaver lift, 35" Boggers/TSL's, 9" Full Spool, D44 Trac lok, 4.56 gears
78 Bronco Build (56k warning)

Well I'm starting to work on my bronco some more, so i thought i would start a build thread. So far all i have done is clean it up and get rid of some unnecessary smog stuff. After rebuilding the carb and adjusting the timing to make it run decent, it burnt some valves up. So, a rebuild is in order. It is a 351m right now. I have pulled the engine and began to disassemble it along with a 400m we have to use for some parts (crankshaft). I plan on a .030 overbore with an edelbrock intake and cam. I will try to keep this thread alive with my progress. I am on a pretty tight budget since I am still in high school and only can work part time, so this will not be a real performance build. If you have ANY pointers or questions at all don't be afraid to let me know, i encourage it. Thanks











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post #2 of 269 (permalink) Old 03-12-2012, 09:46 AM
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Looking good. We love pics. A slow build is ok. Check in when you can.
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post #3 of 269 (permalink) Old 03-12-2012, 04:24 PM Thread Starter
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Bronco Info: 466/c6/np205, 6" Deaver lift, 35" Boggers/TSL's, 9" Full Spool, D44 Trac lok, 4.56 gears
thanks.
i am hoping to have the bronco trail ready by the end of the school year which is June. So hopefully it wont be too slow of a build. Going to be ordering engine parts within the week, im excited.
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post #4 of 269 (permalink) Old 03-12-2012, 04:35 PM
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Bronco Info: '93 FSB XLT REBUILT 351w WITH ALL NEW STUFF, 33's, AN RUST
i love watching 78-79 builds

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post #5 of 269 (permalink) Old 03-12-2012, 05:08 PM
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Bronco Info: 1985 EB current 1-ton sas and diesel/zf5 swap in progress
looking forward to the build! i'm not extremely familiar with the 351/400M motors, what will the displacement be with a 400 crank in a 351 block?
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post #6 of 269 (permalink) Old 03-12-2012, 06:02 PM
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Bronco Info: 1992 EDDIE BAUER 351W-"Thumper"
Never seen green rims before.

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351W, 6" Skyjacker suspension, 4" body lift
MT Baja Claw 35 x15 x15.5, 4.56 Gears, Warn Hubs
HER JOB IS TO BITCH, I GIVE HER SOMETHING TO BITCH ABOUT!!!
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post #7 of 269 (permalink) Old 03-12-2012, 06:11 PM
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Bronco Info: 91 Bronco 351W E4OD, 6" lift, 35 12.50 Procomp MT2 on 10" wide wheels, Sliders, and custom bumpers
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Originally Posted by 79BroncoSpringTx View Post
Looking good. We love pics. A slow build is ok. Check in when you can.
x2
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post #8 of 269 (permalink) Old 03-12-2012, 06:28 PM
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Bronco Info: 95 XLT SAS Dana 44 front Power lock Ford 8.8 rear True track 4.88 gears 6" Devers shackle flip
keep us posted on your progress, thats an awesome project
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post #9 of 269 (permalink) Old 03-12-2012, 10:11 PM
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Bronco Info: Blue Eyes,Black Stallion, Shadow & Filly
Looks like a good base to start with. Clean that engine bay up good, it's nasty!


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Filly

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post #10 of 269 (permalink) Old 03-12-2012, 10:20 PM
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Bronco Info: '79 built 400, Ford 10.5" Rear, Dana 60 Front, Locked, Twin Sticked
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looking forward to the build! i'm not extremely familiar with the 351/400M motors, what will the displacement be with a 400 crank in a 351 block?
400! haha

Dave

"...when a long train of abuses and usurpations, pursuing invariably the same object
evinces a design to reduce them under absolute Despotism, it is their right, it is their
duty, to throw off such Government, and to provide new Guards for their future security."
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post #11 of 269 (permalink) Old 03-12-2012, 10:21 PM Thread Starter
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Bronco Info: 466/c6/np205, 6" Deaver lift, 35" Boggers/TSL's, 9" Full Spool, D44 Trac lok, 4.56 gears
Okay so I just had a long conversation with my dad. I have now decided to just change the valve springs, cam bearings, timing chain, intake, carb, cam, and headers instead of getting it bored and new pistons. The cylinders are pretty round and it does not burn any oil. The complete rebuild will be moved to either summer or next year. I am going to focus more of my money on the driveline to make that reliable first. (Tranny, axles, u-joints, brakes etc). As long as i can get the 351 running good, i will be happy until i can do a complete rebuild. I know the front axles needs to be looked at. The pinion bearing is shot and it needs wheel bearings bad. I will still post pics of my progress on the engine too, but its not going to be quite as pretty as originally planned. And yes i will make that engine bay look good, I am very picky when it comes to things like that. Lol
Thanks for the comments everyone. If you have any tips or questions please say so!
Gonna get another 78/79 on the road!
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post #12 of 269 (permalink) Old 03-12-2012, 10:28 PM Thread Starter
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Join Date: Oct 2010
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Bronco Info: 466/c6/np205, 6" Deaver lift, 35" Boggers/TSL's, 9" Full Spool, D44 Trac lok, 4.56 gears
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Never seen green rims before.
haha they came with those tires. They came on my stepmom's 77 bronco which is green. No worries, they wont be on there long anyway, they are way to narrow! lol
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post #13 of 269 (permalink) Old 03-13-2012, 01:01 AM
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400! haha
that's what i thought but was not certain the blocks were identical. cool deal.
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post #14 of 269 (permalink) Old 03-13-2012, 09:33 AM
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Gonna get another 78/79 on the road!
That's what I like to hear!
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post #15 of 269 (permalink) Old 03-13-2012, 11:19 AM Thread Starter
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Bronco Info: 466/c6/np205, 6" Deaver lift, 35" Boggers/TSL's, 9" Full Spool, D44 Trac lok, 4.56 gears
Quote:
Originally Posted by norfolkff05 View Post
that's what i thought but was not certain the blocks were identical. cool deal.
Yep, someone can correct me if I'm wrong but I'm pretty sure the only differences between the 351m and 400 are crank, rods, and pistons.
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post #16 of 269 (permalink) Old 03-13-2012, 12:03 PM
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Bronco Info: 1979 Bronco, 400/c6/np205, dana 44/ 9"rear, 3.50 gears, 4" suspension lift with 35"x12.5"x15" tires
Just the crank and piston is different, same rods

1979 Bronco
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post #17 of 269 (permalink) Old 03-13-2012, 03:47 PM
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Bronco Info: 1979 bronco custom, high school project.
Quote:
Originally Posted by fordaholic495;
I am on a pretty tight budget since I am still in high school and only can work part time, so this will not be a real performance build. If you have ANY pointers or questions at all don't be afraid to let me know, i encourage it. Thanks
I am in the same boat with you on that one. In high school, part time job and a 79 in way worse condition than yours.

Last edited by BigBroncoBoy; 03-14-2012 at 12:36 AM. Reason: Quoted too much
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post #18 of 269 (permalink) Old 03-13-2012, 04:12 PM Thread Starter
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Join Date: Oct 2010
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Bronco Info: 466/c6/np205, 6" Deaver lift, 35" Boggers/TSL's, 9" Full Spool, D44 Trac lok, 4.56 gears
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Just the crank and piston is different, same rods
Thanks for the info. This is an awesome learning process for me, and any info helps. Appreciate it.
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post #19 of 269 (permalink) Old 03-13-2012, 04:17 PM Thread Starter
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Join Date: Oct 2010
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Bronco Info: 466/c6/np205, 6" Deaver lift, 35" Boggers/TSL's, 9" Full Spool, D44 Trac lok, 4.56 gears
We didn't have school today, so i started cleaning parts in prep for paint. Valve covers, oil pan, and water pump are all going to be repainted blue. Intake and fuel pump will stay the way they are. The intake didn't come as clean as i was hoping, but I will continue to work at it. Going to be ordering parts soon!

Before:




After:

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post #20 of 269 (permalink) Old 03-14-2012, 09:08 PM Thread Starter
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Join Date: Oct 2010
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Bronco Info: 466/c6/np205, 6" Deaver lift, 35" Boggers/TSL's, 9" Full Spool, D44 Trac lok, 4.56 gears
Well i got some more work done today since i had the day off from work. I washed the engine bay! but it's still not even close to my standards. So I am not getting off easy with just degreaser and the pressure washer, some elbow grease will be needed. It does look better, but not great. I also removed the crank main caps and rod caps to check clearances. Lucky for me the bottom end was recently rebuilt and all the bearing and clearances were good. Tomorrow I am going to take the crank out and clean it all because it was kind of dirty, too dirty for me anyway. Anyway, enough of me blabbing. Hope ya'll have a good night

Before:







After:





And just for shits and grins i took some pics of my dad's 429 in his 78 f150. He has a lot of work into that truck and I was glad to be able to help a lot with this engine.





I really like how he routed his spark plug wires too, thinking about doing the same thing. He made the brackets for the clips at work.

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