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Difference between 86-93 5.0 and 94-95?

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60K views 17 replies 14 participants last post by  GypsyR  
#1 ·
How come whenever I'm looking at parts for a 5.0, I see "For 86-93" but they still used the 5.0 in 94-95, correct? Will the 94-95 still drop into my car using stock motor mounts, or is there something I'm missing? Thanks!
 
#2 ·
#3 ·
94-95 (as well as the 97-2001 Explorer 5.0L) will fit and are functionally the same. 94-95 used a low profile upper intake as well as minor changes to a few other parts to fit the new SN-95's lower front end, so doesn't flow as well as the earlier years. Engine mounts were different, too, from the Fox bodies, but that won't affect us vintage conversion guys. I'm using a carbed 97 Explorer 5.0L with vintage stock style motor mounts (recently changed to Ron Morris' mounts), vintage timing cover and accessories and V-belts in my 66. No fit issues!
Daniel
 
#4 ·
Going to look at engine now, which the guy "thinks" is a 90.. Whats the best way to tell what year it is? Guess I should run a compression test before dropping 1K eh? :D (That would be all accessories, and T5)
 
#5 ·
Does "1986" qualify as vintage now? :p
 
#7 ·
'86-'93 use different front accessory pieces than '94-'95 for it's serpentine assembly... so if you're looking for a full engine and you'd use the serpentine, it'd be best to get the '86-'93 so you have a better shot at getting all the parts easier.
 
#8 ·
JohnnyK
I am in toronto.
My 71' has a 92 Thunderbird 5.0L HO. I am using a 94 Mustang EEC (T4M0)and an eec tuner board.
The lower intake fits much nicer as the airintake curves forward instead of running into the shock tower.
Private message me and I'll send photos and transfer all that I learned from my swap to you.
Pete
 
#9 ·
a stock 5.0 for a grand i will sell u mine for that and walk to work thats crazy got to the junk yard and look for a lincoln mark7 they have the same 5.0ho an 87-93 mustangs! to be on the safe side make sure u find an 88-92 mark as someof the 87 were still e6(1986)engines u can pick one up for cheaper cause it doesnt have the traditional mustang surcharge!!
 
#17 · (Edited)
Hi I have 92 Mark 7 and i want to put the 5.0 in my 94 Mustang. Both are automatic. The Mustang is a 3.8. The trans is dead on Mark 7, but everything else is good. Do you know what i Will need to Do the swap? I also plan to swap the dif and i check how to fit the air ride.
Thanks if you have any tips.
 
#10 ·
Well what I am going to look at is a supposedly, 1990 5.0 with T5 transmission, and all accessories (including AC compressor, etc).. I assume it has computer, etc, etc.. Bad deal/good deal? Has 90K KM on it (Whats that, about 65 Miles?) He wants $1500, I figure I'll just show up with 1K cash. If he takes it, ok, if not, well, I'll live I guess.

Thanks guys!
 
#11 ·
Cut and pasted from somewhere on the web:


1979: Horsepower was 140. Engine was junk. Leak prone 2 piece rear main seal. 8.4:1 compression cast pistons, economy cam, 369cfm two barrel carb, mechanical fuel delivery system, junk heads, cast
iron exhaust manifolds, single 2 inch exhaust.


1980-1981: No 5.0 instead it was a 4.2 V8 totally junk with no performance potential.


1982 5.0 H.O: 157 horsepower, 8.4:1 compression cast pistons, a roller timing chain, 369 cfm motorcraft 2 barrel carb, flat tappet marine camshaft, internal balance changed to utilize 50 oz. imbalance. components and a thincast 302 block. Things improved for this year
but the engine still had little performance potential. Heads had tiny ports and small valves, pistons are cast and low compression,
block is pretty weak. Last engine to use the 2 piece rear main seal.


1983 5.0 H.O: 175 horsepower, basically same as 1982 with some minor changes. Heads, camshaft, exhaust manifolds and pistons were all
carryovers from 1982. Added 600 cfm Holley 4 barrel and the crankshaft and block were altered to use a one piece main seal. Still very limited performance potential due to pistons, cam, heads
and weak block.


1984 5.0 H.O: Engine was exactly the same as 1983. First year for fuel injection. All AOD mustangs got the Low pressure Central Fuel
Injection equipped with two 52-lbs-hr injectors. This system has absolutely no performance potential.


1985 5.0 H.O: 210 horsepower. First hydraulic roller tappet camshaft, forged 8.4:1 compression pistons, tubular exhaust manifolds
with 2 1/2 exits, improved heads. Roller cam provided improved breathing along with tubular dual exhaust. Induction system used an
improved Holley carb while the AOD mustangs still had the CFI fuel injection. The carb cars could be modified the usual ways while the
AOD cars still offered no performance potential. Performance still limited on carb cars due to weak roller cam block, poor heads, low compression.


1986 5.0 H.O: 200 horsepower but increased torque to 285 lbs-ft. Stronger block, compression increased to 9.2, heads were a little
better with improved swirl and rate of burn. First year for multi- port fuel injection (Speed Density). Came with 19 lbs-hr. injectors.
Roller cam was carryover from 1985. Tubular exhaust manifolds were changed to eliminate the cold start exhaust control valve and the
outlet size changed to 2 1/4". Still lacks performance potential due
to lack of valve eyebrows in the pistons, high swirl combustion chambers are useless for performance so heads are junk, intake
manifold has tiny ports and a 58 mm throttle body. The Speed Density fuel injection has trouble handling performance parts. Can buy
a conversion kit to convert to mass air system.


1987 - 1988 5.0 H.O: In 1987 Ford switched to the truck head with larger ports and valves, 9.0 compression forged pistons with valve
eyebrows, larger runner intake and 60 mm throttle body. Still used Speed Density though. Camshaft, exhaust manifolds and block were
carried over from 1986. Offered good performance potential when converted to mass air.


1989 - 1992 5.0 H.O.: 225 horsepower. This series of engines offer the greatest
performance potential of all the 5.0 H.O engines. Block, heads, intake and exhaust manifolds are unchanged from 1987. Introduction
of the 55 mm Mass Air fuel injection system allows use of radical camshafts. These engines are the best choice for performance.


1993 5.0 H.O: Basically indentical to 1989 - 1992 except for one important change. Went to cheaper cast hypereutectic aluminum pistons
instead of using the previous expensive forged pistons. Good pistons but use of a cast piston hinders high performance. Turbo, super-
charging, or nitrous are pretty much out of the question. These cast pistons can only handle modest power gains before they die.


1993 5.0 Cobra: 235 horsepower. Cast iron GT-40 heads, SSC type exhaust manifolds, cast aluminum GT-40 style intake, 65 mm throttle
body, 24 lbs-hr injectors, 70mm mass air meter, shorter duration, higher lift camshaft, 1.72 rockers and a specially programmed EEC-IV
computer. However, it also contains those junk pistons noted above.


If you are shopping around for a Mustang with the intent of modifing it, your best bet is to stick with a 1989 to 1992 car.
 
#12 ·
I got a whole running '90 LX with a high-mile 5.0 and working T5 for $800.01 and I didn't have to look that hard.

He's out of his mind if he's thinking he'll get $1500 for a stock 5.0/T5 even with all the accessories and computer.

Before even dropping $1K, I'd want to see the bearings and cylinders/valves to verify that all I'd need to do it pop on new head and pan gaskets and run the motor.

$1K for the whole setup isn't necessarily a bad deal, but if you then need to rebuild the motor, it's a horrible deal. (Rebuilding a T5 isn't too bad in terms of parts cost, generally.)

A '90 would have had forged pistons and an A9L computer (one of the more desirable for this conversion), BTW, and the '90 T5 is one of the stronger T5s stock (though it still has the 3.35 first gear).
 
#14 ·
Went to look at it today. Didn't LOOK to bad.. Saw one cut wire that was sitting on the engine. Didn't know if it went with that engine or not, but i tsaid ford on it :D Looked all complete.. Didn't talk to the guy yet though.

Phoned another guy today, who said he had a "Keith Black motor" he would sell me. I didn't think they made a 5.0 motor, so I assume pistons? Can't remembe rall the specs, but I remember the cam being a .5xx lift.. Anyways, I didn't know exactly if it was an engine he built or what, so I said "Carb or fuel" and he said either, that he would throw in fuel injection and wiring, but that I would need some sort of aftermarket programmer for the computer (can't remember he said if he'd throw that in).. So I said I was looking for a 5.0 and a T5, and he said he would add a t5 and make it come to a grand or under. I dunno though, I will phone him tomorrow and get all the specs for it.I think he said he ran low-mid 12's with it. Not sounding like something I want to drive around daily, but I could be wrong. I don't like the idea of an engine thrown together and modifying the FI, etc.. But I'm not the authority. I'm going to get some specs and post em for you guys.. :D