1994 Bronco (5.0?) E4OD 4x4

When I picked up my Bronco my stepdad said it had a 5.8 in it even after I pointed out the 5.0 intake manifold. He was told by the previous owner that he "swapped in a 5.8". I have confirmed this is a 5.0 block, but the casting numbers are odd. Are there mods you can install in a 5.0 block that come from a 5.8? The truck was not registered for 9 years, so the idea that the engine was previously blown seems likely.

The problem I have is that I can not comfortably do any work on the engine without knowing what is inside. I tried using the casting numbers, but that led to more questions.

Block (under starter) = FISE 98 = 1991, Thunderbird 1958+, Engine ; 5G29 = July 29 1995
Head (driver side front) = 22
Intake manifold (under distributor) = RF-E9TE-9K-461A4A = 1989 Truck Engine
Exhaust manifold (driver side) = RF-F6TE-9-431878 = 1996 Truck Engine
Exhaust manifold (pass side) = RF-F6TE-9430-G78 = 1996 Truck Engine
Transmission (yellow sticker) = 1994 E4OD exchange program RF-FOTP-7006-CE = 1990 Truck Auto Transmission
Alternator bracket = F-3TA-10239 = Possible missing digit F = 1993 Truck Chassis

With this combination of parts I am at a loss as to what the engine truly is. My stepdad is going to try to contact the previous owner, but it was sold 2 years ago.

Does anyone have any ideas about what I have or how I can confirm what it is without removing the engine?

 

Stare at the front driver side of the engine. Stare at this. Go back and forth until it's clear:

http://cimg6.ibsrv.net/gimg/www.ford...8248db973c.jpg

 

I know the block is a 302 based upon the thermostat housing bolts. It does not have the taller deck height either. I'm trying to figure out if something is not OEM inside the engine based upon the parts attached to the engine and the story of "swapped in 5.8" from the previous owner.

 

There is no way to know what is inside the engine based on casting numbers.. simply because even when these trucks were new they were built with a pile of "mismatched" parts. The reality is this truck line was a dumping ground for all the Windsor family engine parts Ford had left over from decades of production... and... this isn't a new truck anymore so who friggen knows what combination of OEM and potentially aftermarket parts you have there.

So all that said it sounds like your Stepdad was lied to or the PO really didn't know what he had, it happens I have met plenty of people that don't know the visual differences between these engines.

So you still need to do a little investigation.
Look at the top outer corner of the cylinder heads and see if you can spot a letter cast into the head just outside the valve cover.

Now a '91 truck engine would been a low output 180hp slug with a tiny flat tappet cam but a '91 T-bird motor would have been a 225hp 5.0HO roller motor, so the next question is how does this motor run? Is it a little soft on the bottom end but pulls hard to 5000rpm or is it kinda peppy at low rpms but has no topend HP at all and struggles to rev past 4000rpm.

 

22 is Mold No.

E9TE 9K461-A4A

F6TE 9431-878 (Suffix Strange)
F6TE 9430-G78

For certain you have a 5.0L block. Now what's inside...

 

It's probably B7B & F6TF-9430-G78 is probably G7B

F1SE is the block casting number prefix, the date code on the block is 5G29: July (G) 29, 1995 (5), so this 302 could have been installed in a 1996 Thunderbird, Cougar, probably others as well.

 

The actual Component I.D. No is the Engineering Number of the component and while not all info was released for public view, can be used to ascertain the correct Service PN, along with Casting Date Codes, foundry ID, etc.

Basic PN 6015 would be the actual bare block casting no.

FORD had to have a method of identifying component for assembly and warranty, and these were ENGINEERING COMPONENT and ASSEMBLY PN's.

The confusion begins when one sees F1SE and immediately assumes it is BIRD only.

 

6015 is the basic block casting number, 6010 is the basic bare block part number.

 

Ain't that what I said...

You upper management types always messing with the grunts...

 

Hmmm, my eyes appear to be playing tricks, probably since I've been on here since about 8AM (PDT) and yesterday even longer.

Time to go take a nap and rest my peepers.

 

I have the same problem, no life.

I am sure you have read some of my asinine replies here...

Bad eyes and CRS don't mix...

 

I thank you all for your responses!

At this point I am trying to conclude 2 things.

1) This is not the original engine - Confirmed based upon date casting in block?
2) What mods can be done to a 5.0 block that are "swapped over" from a 5.8 to match the story I have been told?

I will look for more casting numbers on the heads later.

I was not to concerned about the part numbers after the year was identified.

This engine definitely feels more powerful than the 5.0 I have in my 1994 F-150 5.0 E4OD RWD that does not have a slipping transmission.

 

None worth talking about, the 5.8 block is taller and wider so a 5.0 intake doesn't fit, distributor doesn't fit, oilpan doesn't fit, the exhaust manifolds are different, and the engine balance is different. Both motors use the same heads but that means there is nothing to gain there. And to add insult to injury the 5.0 truck intake is better designed than the 5.8 version so it's not worth trying to make that work either.

 

That was the piece of info I needed. There was hope that something had been done to the engine involving 5.8 components solely because of the story I have been told.

Now I'm going to have to do a lot more research before I change anything on the engine.

If the person that installed the engine built it, then I am in trouble. I have found manifold bolts an inch out, emissions port on back of head not sealed or torqued, to small serpentine belt, slightly loose hose clamps, etc, etc, etc...

I have been debating taking the truck to a guy I know that builds racing 5.0s. This might make him the best bet.

Thank you all!

 

While nobody came straight out and said it, the block IS a 5.0. But the date code is too new to be the original engine. That casting was used in every Ford/Merc car, truck and van that was equipped with a 5.0