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Distributor for 4.3 conversion to carb

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Old 12-31-2003, 05:12 AM   #1
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Distributor for 4.3 conversion to carb

Converting a 94 4.3 older style 12 bolt intake vortec to Carbed intake with edelbrock manifold #2111

WHat do I do with distributor? I need an HEI w/vacum advance that will work for this 4.3...any suggestions? Thanx
Old 01-01-2004, 06:56 AM   #2
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i'm not certain but i think a V8 hei distributor is the same with just a different cap/rotor.
we'll wait and see if anyone agrees with me (i'd like to know this also).
Old 01-01-2004, 10:23 AM   #3
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You can use the MSD pro-billet if you want to get the msd 6a. That way its not vacuum anything, its a magnetic pickup.
Old 01-02-2004, 01:51 PM   #4
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I have an 85 4.3 that I just got running it was tbi I converted to carb. I used edelbrock manifold #2111 you have to get a distributor that even fire the one I got was for an 81 229 v6 I think. They did make some 85 4.3's carbed so you can get that they are in the c10 trucks some cars and vans no s10's. hope that helps
Old 01-02-2004, 03:14 PM   #5
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Quote:
Originally posted by 87s104.3
I have an 85 4.3 that I just got running it was tbi I converted to carb. I used edelbrock manifold #2111 you have to get a distributor that even fire the one I got was for an 81 229 v6 I think. They did make some 85 4.3's carbed so you can get that they are in the c10 trucks some cars and vans no s10's. hope that helps
monte carlo's to!
Old 01-02-2004, 10:56 PM   #6
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The 85 I have is out of Monte Carlo it was tbi not sure if any was carbed in those.
Old 01-03-2004, 02:15 PM   #7
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You HAVE to find a 4.3L V6 Distributor. No V8 one will work. Take the cap and rotor off and have a look at the pickup coil. You'll see 8 points for a V8 and only 6 points for a V6. put a V8 one in and it'll be terribly confused... V6 distributors are easy enough to find. Just make sure it's not out of a ESC (Electronic Spark Control) truck
Old 01-08-2004, 06:30 AM   #8
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I believe GM "family"has made three v6 distributors; odd fire, even fire and I believe a "semi-even fire". You need an even fire distributor and I believe (even though somebody will disagree) that Chevrolet never made an EVEN fire non-computer 4.3 distributor. However, if such a critter exist, I want one! Anybody got specifics?
Old 01-08-2004, 03:21 PM   #9
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I don't know what year they started makeing the 4.3 but 1985 some was made carbed so they are non-computer. And I think all 4.3's are even fire I may be wrong.
Old 01-08-2004, 07:08 PM   #10
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Actually there were computer equiped cars but not really computer controled vehicles with carburators from 1980 to about 1986/87. Question boils down to: What year(s) did the 4.3 appear with carbs and distributors (if ever) and can those distributors be used/converted to traditional use. There was some really funky electronics during those years.
Old 01-08-2004, 07:30 PM   #11
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1985 some was made carbed. WHAT DO YOU MEAN TRADITIONAL USE? My 4.3 was TBI I converted it to a carb I use an 1981 HEI distributor for 229 even fire v6 and I just got it running about 2 weeks ago.
Old 01-08-2004, 07:56 PM   #12
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By saying traditional use I ment non-computerized. All 229 engines have semi-odd fire cranks. 229's were made between 1989-84. I don't know what distributor you have but it cannot be an even fire from a 229. I ain't going to argue with you, say what you will.
Old 01-08-2004, 08:05 PM   #13
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I might be wrong on the 229 but it's even fire and it runs and thats what matters. as for the traditional part I thought that was what you was meaning.
Old 01-11-2004, 02:44 AM   #14
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well, I posted a page on this about a year ago , words taken
right from Chevrolet Power Service Manual.

as below

Production Chev. 90 deg. v6s have been offered in 3 displace ments. In 1978 the 200 ci was introduced. In 1980 the bore was increased to yield 229 cubic inches. In 1985 , the 4.3 (262)
replaced and 229 engine. In addition to these differences in cylinder diameter, production v6/90 chev. are also distinguished by their firing sequences. All 1978-84 200ci and 229ci engines have a "semi-even" firing sequence.

The 4.3 introduced in 1985, is a true "even-fire" engine.

Finally, a heavy-duty " common pin" crankshaft was developed for racing. This is an "odd-fire".




Late model 4.3's are available with both cast iron Quadrajet and aluminum two-barrel Tbi intake manifolds.
Old 01-11-2004, 02:54 AM   #15
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if ya really want, just by an Msd box, then use the two wires that come off the pickup in the stock computer controlled distributor.
Use those as the pickup wire for the msd box, you wont have any advance but if you set the timing at 35 deg. and run premium, like 92-93 octane, it will start just fine. Also, gm performance says the swirl port head makes best power at 35 deg. total.

This is what I did to Lilscreamers truck, 91 4.3 block, 229 heads,
edelbrock intake , holley 600,comp roller, ran 14.91 at 92 mph.

Last edited by 89shortbox; 01-11-2004 at 02:54 AM.
Old 01-13-2004, 11:49 AM   #16
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I have a 4.3 hei vacuum advance distributor from 1985 from a full size truck. I got it from local parts store new, they cost around 100 bucks, but its rebuilt with new stuff, not a bad deal. If you are using a double pumper, you will have to use a lot of spacer to clear the distributor. you can also use your factory distributor if you have a hot enough motor to run with locked out timing. you just have to use an msd setup with factory style coil.
Old 01-13-2004, 04:40 PM   #17
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Hey lunatic, can you check here and see if you know the answer to any of these questions?

http://www.s10forum.com/forum/showth...threadid=80968
Old 06-10-2014, 09:03 AM   #18
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Re: Distributor for 4.3 conversion to carb

Quote: Originally Posted by lunatic515
I have a 4.3 hei vacuum advance distributor from 1985 from a full size truck.
Will this work?
http://www.aipelectronics.com/index....3-8l-4-3l.html

Or do I need to shell out some more...?
http://www.summitracing.com/parts/du...olet/model/c10
Old 06-11-2014, 04:48 PM   #19
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Re: Distributor for 4.3 conversion to carb

I have the set up off my 95 4.3 4 bbrl intake distributor and it all works . if your interested sell it to you cheap
Old 06-11-2014, 05:39 PM   #20
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Re: Distributor for 4.3 conversion to carb

That's ok, I just found a distributor on ebay with a 5 year warranty for $90. Ordered it this morning!
Old 06-11-2014, 07:50 PM   #21
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Re: Distributor for 4.3 conversion to carb

1985 Astro 4.3 was a carb engine.
Old 06-11-2014, 09:19 PM   #22
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Re: Distributor for 4.3 conversion to carb

A friend of Mine had a carbed 229 in a first gen extended cab. It came out of a Monte Carlo he bought for $100 and drove home.
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