1981 Ford Bronco
Owner: AbandonedBronco 
From: Boise, ID, U.S.A.        (Other registries in ID)
Year, Make, & Model: 1981 Ford Bronco        (Other Ford Broncos)
Avatar:
Nickname: Spartan
Mileage:
Engine: 300 Inline 6

4 barrel 1848 Holley 465cfm carb with a dual port Offenhauser performance intake.
Dual fuel injection 4.9 exhaust manifolds out through a single 2.5'' exhaust with a high flow cat and muffler.
Drivetrain: 4spd NP-435
9'' rear and a 3.00 final drive.
32'' BFG A/T KO2
Notes: The Bronco was abandoned at my girlfriend (now wife's) father's ranch since it didn't pass California emissions (and wouldn't start) with the promise of ''I'll pick it up next week.'' Four years later, it hadn't moved.

He gave it to me if I could get it running, so I did some work and drove it 700 miles home to Idaho. My first Ford, my first truck, and my first 4 wheel drive.

Since then, I've put 45,000 miles on it, rebuild the entire suspension, brakes, transmission, drive train, and have turned the slouch old tired 300 into a powerful and fun torque monster.


No idea how many miles are on it. Pulled the original engine and it had been rebuilt once already and had since then worn out past 60 over. 400,000? 600,000?
Last Updated: 12/13/2016
Hits: 45618
Album
Folder Hits Comments Created Updated
folder Four barrel conversion370058,77203/23/0910/29/10
    folder O2 Sensor Install2021,511011/17/092/15/14
    folder Extra pics16006,50006/10/101/18/13
    folder Underside Intake Heat18003,87504/7/134/7/13
    folder Holley 80555670012,37909/13/1311/11/14
    folder Holley 184838003,20201/23/1510/5/15
    folder QuickFuel BD-45039001,57408/11/1612/13/16
folder Exhaust Upgrade210024,29103/26/092/11/11
folder Random Pictures27006,08503/27/0911/30/15
    folder Videos0022,49906/29/097/13/10
    folder Camping Trip 200929009,61109/14/099/18/09
    folder Off-road Outing 22006,74406/3/106/18/10
    folder Camping Trip 2010320011,11107/19/108/9/10
    folder Crossflow Head400591012/20/1412/20/14
folder New Tires23006,89201/22/1011/30/15
folder Technical34007,79804/7/101/18/16
    folder Wing Window17005,37101/24/111/24/11
    folder Intakes6003,37208/23/112/20/12
    folder Floor Repair31008,425011/5/1111/8/11
folder Cam Install1060044,333011/6/107/24/12
folder Headwork460016,83702/2/1110/25/12
folder Engine Swap410010,82505/2/1110/4/12
folder Saginaw Swap75007,37504/16/125/13/16
folder Engine Rebuild19004,36606/25/1210/3/12
    folder Second attempt230077702/1/163/1/16
folder NP435 Swap960018,730010/4/1212/21/12
folder Ignition90059002/11/158/9/16
folder Engine Pics80072403/2/153/2/15
folder Warn Hub Diagnostics21001,30803/2/153/17/15
folder New seats19001,26805/14/155/14/15
folder Weatherstripping38001,657010/26/1511/2/15
folder New Door Pins1200584011/12/1511/12/15
folder Bronco Pics650018,593011/30/1511/30/15
    folder 1984 Bronco530016,34108/2/1011/30/15
        folder For Sale Pics32001,619010/6/1510/6/15
folder Headlight upgrade160082701/18/162/14/16
Newest Media Files
2016-12-13 18.25.57.jpg
32 hits | 36.73 KB | Posted: 12/13/16

2016-12-13 18.25.49.jpg
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2016-12-13 18.25.47.jpg
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2016-12-13 18.25.37.jpg
22 hits | 36.26 KB | Posted: 12/13/16

2016-12-13 18.25.33.jpg
22 hits | 43.57 KB | Posted: 12/13/16

2016-08-20 16.40.32.jpg
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2016-08-20 16.36.33.jpg
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2016-08-20 16.36.26.jpg
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2016-04-02 12.30.16.jpg
40 hits | 48.24 KB | Posted: 8/11/16

Most Viewed Files
Engine Bay.JPG
4576 hits | 82.67 KB | Posted: 3/23/09


Here's a shot of the mostly stock engine bay. The only thing in this picture that isn't completely stock is the EFI 300 exhaust manifolds. It's time to dig in.


New Intake.JPG
2498 hits | 73.7 KB | Posted: 3/23/09


Here's the new intake in place.


Offenhauser Intake.JPG
2432 hits | 78.54 KB | Posted: 3/23/09

The new aluminum Offenhauser dual port intake.


0829081417-00.jpg
2345 hits | 44.85 KB | Posted: 3/26/09


These pre-shaped pieces showed up in the mail. The fact that the tailpipe was made specifically for the Bronco and the Y-pipe for the EFI manifolds on a straight six really saved me time and money.


Intake Removed.JPG
2319 hits | 77.76 KB | Posted: 3/23/09


The intake removed giving a clear shot of the dual exhaust manifolds of the EFI 300. MUCH better than the restrictive six-to-one stock 1bbl exhaust manifold. I thought about painting those when I put them in but I didn't want the rest of the engin...
With Heat Spacer.JPG
2159 hits | 74.69 KB | Posted: 3/23/09


The intake with the heated spacer. This particular spacer is designed to run coolant underneath the carb to prevent it from icing, especially in the winter.


Hooking the lines up.JPG
1982 hits | 78.68 KB | Posted: 3/23/09


Everything's in place, the lines are hooked up, and it's ready to go!


Accelerator Bracket.JPG
1950 hits | 68.06 KB | Posted: 3/23/09


The custom made accelerator bracket. Cost about $6 for the steel.


The Final Touch.JPG
1926 hits | 82.99 KB | Posted: 3/23/09


Putting on the last, and final touch after we tuned it. It is time for a test drive.


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