Swapping an 86 5.0 into an 87 GT?
- Thread starter psycho78
- Start date
Hey guys, I figured Ill try and update this as we go along. Today, he had the motor turning over just no spark which is a great sign. At least its not seized and we're thinking we can probably keep the stock motor in but may have to pull a few things off the 86 to replace anything thats bad. Hes checking wires and the computer first. Heres a few pics of the beginning. We're taking photos as we go through it. This is Monday, the day I first hauled it over there. 1 of the outside and 1 of the engine. I think its a pretty solid car for a mere $700.
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Mikey1968
Member
The cam is not different.
The H.O. roller cam is the same from '85 through very late '88.
Not true. Pretty much any Mustang History site worth it's salt will tell ya different.
I've also seen (an attempted to find it before posting without luck), cam comparison charts for the Fox motors and through the 95. Though there were MANY Fox bodies that carried the same cams, that cannot be said for 85 all the way through late 88. If I come across a good reference, I'll come back by this thread and post. I would hazard a guess though, that a google search for model year differences would yield a result.
DON'T JUST THROW PARTS (or motors) AT A PROBLEM!!! Find out what the problem is! If it isn't cranking, a new motor IS NOT going to fix it. Is this a good buddy? Or more to the point, a good mechanic?
No mechanic worth his salt would tell you to replace the motor at this point man. Find out why it's not starting. Pull the plugs & pour a bit of Marvel Mystery Oil into the cylinders, prime the oil pump, turn the crank with a wrench. Then try to start it.
If you can hand-turn the crank, but it won't crank off the key... it's not the engine. It's in the ignition/starting system. Electrical, not mechanical.
No mechanic worth his salt would tell you to replace the motor at this point man. Find out why it's not starting. Pull the plugs & pour a bit of Marvel Mystery Oil into the cylinders, prime the oil pump, turn the crank with a wrench. Then try to start it.
If you can hand-turn the crank, but it won't crank off the key... it's not the engine. It's in the ignition/starting system. Electrical, not mechanical.
Is true.
Post up any "Mustang history 'site" that says different. There is a lot of BS info on the Internet, and people just believe it and post up the bad info along with the good. I will respond when I see wrong info posted on any message board I participate. I'll be happy to refute anything else these "Mustang history 'sites" you speak of have wrong.
'85-late '88 H.O. 5.0L cam engineering part number: E5ZE-6250-AA
late '88-'89 H.O. 5.0L cam engineering part number: E8ZE-6250-CA
E5ZE-6250-AA specs
Valve timing events:
IVO: 17º BTDC
IVC: 69º ABDC
EVO: 67º BBDC
EVC: 19º ATDC
Duration: 266º
Overlap: 36º
Lobe/Valve Lift: .278"/.444"
Lobe Centerline: 115º
E8ZE-6250-CA specs*
Valve timing events:
IVO: 20º BTDC
IVC: 76º ABDC
EVO: 67º BBDC
EVC: 19º ATDC
Duration: 276º intake/266º exhaust
Overlap: 39º
Lobe/Valve Lift: .278"/.444"
Lobe Centerline: 116º intake/115º exhaust
*Effective with engine build dates on or after August 8, 1988, the "E8ZE" cam's intake and exhaust lobe contours were revised to reduce valvetrain noise. Although the change did not affect the cam's lift of phasing specifications, it does reduce actual engine output by three horsepower.
There were only three Ford/Lincoln/Mercury models from '85 through '88 that had the H.O. 5.0L engine...
'85-'86 Capri
'85-'88 Mustang
'87-'88 Mark VII
All other F/L/M models that had a 5.0L engine had a "standard output" 5.0L and if the cam as roller, it had different specs.
