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The problem is that the part # is dependent on the calibration code since the advance is part of the overall calibration. Let me see what I can do. But, you can figure it out yourself by using the process shown here since you have the catalog: How To Find Carb Parts - ???Gary's Garagemahal. (I know it says "Carb Parts", but the process is good for anything included in the Calibration Parts List, inc the dizzy.)
However, we are going to have to target a dizzy for your engine in a HD truck, like one w/a GVWR over 8600 so there's no emissions. And, it might have to be an earlier truck. Lemme see.......
I need a 351W Duraspark II distributor,
I keep getting hits for a TFI Dizzy, and can't use it.
Going through the Ford parts look-up is confusing me.
So I need a 351W, single vacuum, Duraspark Dizzy, that will Perform with an Edelbrock 600-650 CFM 4-v with no EGR...
Would prefer a Ford Dizzy.
Thanks
The problem is every single distributor from the 1980s is going to be calibrated for EGR. If you aren't going to have EGR on your truck, try to find a distributor from a 1960s or early 1970s vehicle with a 351 that didn't use EGR - the advance curve will be better.
Another option is to buy a Duraspark distributor from Performance Distributors. They are pricey, but they do offer a good product that is completely rebuilt and curved for your engine...and they can tune out EGR:
It's definitely a single advance DSII distributor, and has the Motorcraft # DA-1998 Ford tag # E7TE 12127 HA
E5TE-12127-HA = E5TZ-12127-H (Motorcraft DA-1998)
This dizzy was not used in any car, as this ID number doesn't appear in the 1980/89 Car Parts Catalog.
It's 1985 related, but...
Beginning in 1980, the only way to look up dizzy applications is by the Calibration Code and there could be dozens of codes for just one year/series/engine size! It's a royal PITA!
I doubt that the OP will find a dizzy from anything in the 1980's, as all came with an EGR valve.
351W introduced in 1969 cars, 1975 Econoline, 1981 F150/350 & Bronco. EGR valve introduced in 1973, DuraSpark II introduced in 1976.
IMO, find a 351W dizzy from a 1976/79 Econoline or Ford/Merc Passenger Car. Lotsa luck finding one without an EGR valve.
btw: You can look up the modules by themselves under basic part number 12A199
The "blue" module is listed in the 1980/89 truck catalog (under the old number): D9VZ-12A199-A (replaced D6AZ-12A199-A & B).
1U2Z-12A199-AA (replaced: D6AZ-12A199-A & B and D9VZ-12A199-A) .. DuraSpark II Ignition Module-blue (Motorcraft DY-893).
Jim - The catalog doesn't show a distributor with a E7TE 12127 HA tag as being used on any truck up through 1989. The closest is E7TE 12127 FA.
Rick - You are correct about the EGR. Let me look elsewhere....
Ron - I rethought what I said earlier and realized that a 351HO would have a DS-II dizzy and a reasonable curve, so here's what the catalog shows for a 1984 truck. First, the application chart to get the calibration #. As you can see, CC #400 is the best fit, although apparently the HO option wasn't available with a manual tranny.
And, here's the parts list for CC #400. As you can see, the part # is E4TZ 12127-E and the tag on the dizzy will read E4TE 12127-EA.
It's probably a typo, should read E5TE-12127-HA .. See post #5.
Ahh! We were ships in the night and I missed your post. Anyway, the guy has mis-represented the dizzy. There is no DA-1998 in the 80-89 catalog, so it wasn't used in these trucks.
I think Ron's best bet is the dizzy I listed above.
I need a 351W Duraspark II distributor,
I keep getting hits for a TFI Dizzy, and can't use it.
Going through the Ford parts look-up is confusing me.
So I need a 351W, single vacuum, Duraspark Dizzy, that will Perform with an Edelbrock 600-650 CFM 4-v with no EGR...
Would prefer a Ford Dizzy.
Thanks
Am I right in saying you have a HEI distributor in it now(from another post)? If that is true, why are you getting rid of it? Just curious.
Or, if you are getting rid of the TFI dist, any reason why you are going with a duraspark II? There are many other ones out there in the aftermarket like MSD, Mallory, etc. The one thing I do not like about the Ford dist is the way the weights and springs are way down inside and hard to get to and tune.
If you wanted to go with a 60's or early 70's dist, you could get a points type dist like that and then use a pertronix module inside. That old stuff is getting more expensive though.
Yes I have the HEI set up now, But I'm on the second one, (under warranty) the shaft "seized" (this was my old post about "Timing chain or dizzy messing up)"
This second one from the manufacturer, is starting to break up under load just like the first one did leaving me DOA 500' from home.
So figured I'd go back to Duraspark II.
The reason I left D II was the wire harness was beyond repair, But I may get one tonight (with a blue grommet module) for under $30.
So going back to D II, I also get the Starting retard, (not me, I'm nuts enough)
Sorry about the -HA suffix. I was just quoting the Ebay listing.
If you look at the photos he has a clear pic of the aluminum tag.
ETA: the only issue might be too much vacuum advance in cruise without EGR, and a slow mechanical curve more suited to an 8,600# vehicle rather than your pickup.
11-30-2016, 08:55 AM
5.8 351W 1974-1991 
Type DA1998 into the dealer locator and it gives the Ford part number: E5TZ-12127-H 
