68 Bronco with a 200cid donor.

68Bronc170I6

New member
Recently, I have been able to work on my Bronco which has been in storage almost since I bought it five years ago. The VIN identifies the engine as a 170, but upon further investigation it has a 200.

My plans are to identify this engine, perform a compression test, and determine what carb is best for me. I can't afford any performance upgrades, but I don't see that as a reason not to talk about em'. I don't plan to wheel this Bronco. I'm going to use it as a daily driver and keep it uncut. Any help, ideas, and/or pointers are much appreciated.

Current info:
Block Casting I believe this is a 1978 200CID
11
D8BE
6015-GE

Head Casting
EOBE6090-BB

Carb ID Tag
Motorcraft
E1BE AFA
A OK 30
Elkton 2
12R8326B

Another note: The Bronco started a few months ago, but now it won't. The engine will fire when pouring a little gas in carb, but won't stay running. Checked fuel pump and replaced the fuel filter, but it seems like it's not getting gas. I don't know if it's worth trouble shooting this carb or replacing it with a different more appropriate carb.
 
worth trouble shooting this carb or replacing it

Welcome "68"! You're sure at the right spot for help with that motor. Lotsa 200s on here (not many bronks). If U DO have the '78 U lucked by a better head. I think it'll fit 250 or 200 and has bigger valves, hardened seats, flows bettern all build a decade and more before it ('77 & up are the gooduns).

Now, let's wait a bit to get a positive ID on that carb. I think a rebuild (I learned how from the guys here) may B all's needed. The more informed are approaching from the wings...
While waiting I'd suggest U get a casting # offa that head to B sure ita '78 (WE swap prts all the X - others can too).
Again, welcome!
 
Good to see another six cylinder Bronco. Your carb may have fuel that sort of gummed up from sitting. If it ran good before a rebuild might fix it. Lot's of competent guys (I'm not one of them) on here will help id your carb and get you going in the right direction. Sounds like you have a good head on that 200, as Chad stated, lots of guys looking for that year motor. I had a 200 in mine for years and it ran well. There is some low cost tune up stuff, DSII mods and so on you can do to maximize what you have. Get a copy of the Falcon Performance Manual for details, available on classicinlines.com.
You probably already know about classicbroncos.com a good site for Bronco stuff. Good luck and be sure to ask questions.
Oh and good to keep it uncut.
 
Howdy Bronc:

And welcome to The Forum.

I can't find any references that ID your carb. My guess is that it is a service replacement Holley #1940. The Carter YF was the factory carb on 200s until 1979. The Holley #1940 carbs came into existance as a service replacement for FoMoCo after Autolite went out of business in 1970. These Holley's did have Autolite embossed onto them in 1970, and Motorcraft thereafter, so it's a bit confusing. So my guess is a Holley #1940 service replacement from after 1970.

I'd suggest that you get youself a good spray on carb cleaner and give your carb a good hosing. Next figure out why it's not getting gas to the carb. Disconnect the fuel line into the carb and tune the engine over for a good two minutes. (not continuosly) If you still don't get gas, start checking at the tank. These carbs, in these years are complex carbs with parts that are prone to get varnished up in time. Once you're getting gas to the carb you can figure out your next step.

The only downside to this engine (other than the obvious) is that it had a 8:1 CR from the factory. Depending on your elevation where you drive, around 9:1 will help with torque and economy.

Again, welcome and enjoy.

Adios, David
 
I'm guessing a Carter YFA feedback carb. I have one like it sitting in the garage, someone had on a 240 big block six.
 
Type E1BE-AFA into google search. Definately a smog carb. Lots of kits and manual info on it. Imagine a different carb would be more suited.
 
Ok, so now that the carb is identified, the question remains is this the best carb for my setup? Would another carb be better suited for a Bronco daily driver? Would a different carb help with performance?
 
any non-emission carb will give better performance, but it might result in lower mpg (due to exsessive foot happy action :lol: :lol: )

IIWIYS part 1, get a 2-1bbl adaptor, bolt it on, go get an autolite 2100-2150 from a v8 bronco, and slap it on. they will give better response, IF you really want easy control, go for a holley 2300 series (350cfm) and they have the parts to make it electric choke and an AC idle kick-up (I have AC) I'm sure the autolite has them too, but I can't find them off-the-shelf here in AZ... so I went holley. 2-1 adaptor in my tests showed 10hp increase over the 1bbl

ANY 2bbl will give performance boost to your bronco, the 1bbl is SO RESSTRICTED that when pedal to the metal, you will get vacuum in the higher RPM's (3k+) which means that you're not getting the most out of your engine.

IIWIYS part 2, take the head off, get it modified to mount the 2bbl directly on, it's a 24-40hp increase over the 1bbl hole on the log.

I like part 2 better, but either way, best bang for your buck will be either 2bbl route. just depends if you want to mod the head or not.

Good luck and Welcome to the forum!!! :beer:
Richard
 
again place hood clearance considerations primary with any above suggested mods
(I'm @ that point).
:oops:
 
Howdy again:

I'd agree with Richard's assessment and recommends with these additions- The Holley #1946 is a very limited access carb as far as tuning. Many have the low speed air screw either backwards or sealed to discourage tampering. They also are very congested with EPA crutches. They were FoMoCo's last carb prior to EFI. The Carter YF from 1970 - 1979 Is comparable in CFM @ 185, easy to work on and tune. The Autolite 1101 from a 1969 Mustang 250 at 210 cfm, a Carter RBS from 1970 -1977 @ 215 cfm, or a Carter YF from later 250s @ 197 cfm or a YF from a 300 ci truck engine @ 220 cfm all offer performance upgrades.

The first carb, the Carter YF from a 200, would equal the Holley's performance and exceed it is some ways. The rest would also be easy to build, maintain and tune and offer an increase in performance over what you have. Several will be about equal to a two barrel upgrade with a funnel adapter. A two barrel directly mounted to the intake log will be the best, but most involved choice. Your call.

Adios, David
 
Call me a day late and dollar short... :mrgreen:

That's an '83-'81 Holley replacement carb, I wouldn't waste the time/effort rebuilding it.

If you want stock/simple, pick up a Carter YF somewhere, rebuild kits run under $15, bolt it on and drive off. If you want more oomphand don't mind the effort/expense, head down the 2-bbl road.

Oh, and WELCOME to the board/insanity!
 
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