5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

are you guys sure

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Old 12-23-2007, 10:46 PM
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1992gt400hp
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Default are you guys sure

im just wanting to know if you guys are sure that i can put either style cam (HO or non HO) in any 5.0? i got a non HO motor thats newly rebuilt and i want to put it in my mustang (1992), but i definately want to use the HO cam for the computer's sake. and if anyone knows, how is it so that the firing orders can be swapped and the motor still run??? seems a little bit fishy to me, but i trust you guys. just askin b/c up until a few months ago all i had rebuilt was junky-*** chevrolet motors... you cant swap firing orders on them bastards UNLESS u dont want it to run at all. are there any websites that can tell me how ford motors can have 2 different cams on the same bottom ends? just like to find out as much as i can about them.
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Old 12-23-2007, 10:48 PM
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88 GT CONV
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Default RE: are you guys sure

All I can say is make sure they match as far as being hydraulic or flat tappet
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Old 12-23-2007, 10:57 PM
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1992gt400hp
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Default RE: are you guys sure

they are both stock roller cams both motors are same year models. just wanting to know if i can use a rollerhigh output(stock mustang)cam in a motor that originally came with a standard roller(lincoln town car)cam?
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Old 12-23-2007, 10:58 PM
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mjr46
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Default RE: are you guys sure

ORIGINAL: 88 GT CONV

All I can say is make sure they match as far as being hydraulic or flat tappet
let me correct that for you..... make sure the cam is a hydraulic roller with h.o firing order...lifters are either solid or hydraulic and flat tappet or roller with either having the ability to be hydraulic or solid,,anyway back to the question....you can not use a non h.o. cam in a fuel injected mustang that does not carry the h.o firing order...why you ask??? the mustangs fuel injection is sefi= sequential electronic fuel injection and the injectors fire in sequence in accordance with the firing order and each cylinders injector is fired based on the pip signal from the ICM/TFI........but each injectors sequence is pre programed into the ecm based on the h.o firing order..... so unless the cam has a h.o firing order = can't use it on a fuel injected mustang
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Old 12-23-2007, 11:10 PM
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1992gt400hp
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Default RE: are you guys sure

no no no!!! ok... i got a 302 motor with a non ho cam in it. its a roller motor.its sitting on my engine stand. i got a 302 motor in my car that has a rod bangin its also a roller. i want to take the cam out of the motor thats in my car and put it in the motor on my engine stand. the cam in my car is a stock HO camshaft . Will this work? i am planning on keeping my car stock as hell. no mods at all. just asking if the camshafts are innerchangeable
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Old 12-23-2007, 11:11 PM
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cleanfitty
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Default RE: are you guys sure

Yeah, the cam controlls the firing order and switching that out will give you the proper order for the mustang computer to run it.

And as long as the block you are using is already set up as a roller type, you should be good to go.

The crank pattern is the same on both firing orders.
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Old 12-23-2007, 11:12 PM
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1992gt400hp
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Default RE: are you guys sure

thx cleanfitty
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Old 12-23-2007, 11:16 PM
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mjr46
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Default RE: are you guys sure

so where did the motor come from a grand marquis or crown vic?? as long as both blocks are roller cam then yes you can...you'd need to swap in your h.o cam cause it has the correct firing order..but then again I'm not at work so I can't remember if non h.0 roller motors had the same firing order as h.o.'s but as long as both blocks are roller motors then yes you can swap cams safely
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Old 12-24-2007, 03:17 AM
  #9  
67mustang302
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Default RE: are you guys sure

For your curiosity, the reason you can swap the cams/firing orders, is beause in one setup a given piston would be on exhaust let's say, but with the other firing order it's on compression. Same crank and everything, and the pistons are in the same place, but dpending on when valves are opening/closing, that determines which stroke it is. So it's a matter of whether the pistons happen to be moving upwards/downwards on 1 half of the 4 stroke cycle or the other.
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Old 12-24-2007, 07:10 AM
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Joel5.0
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Default RE: are you guys sure

ORIGINAL: mjr46

so where did the motor come from a grand marquis or crown vic?? as long as both blocks are roller cam then yes you can...you'd need to swap in your h.o cam cause it has the correct firing order..but then again I'm not at work so I can't remember if non h.0 roller motors had the same firing order as h.o.'s but as long as both blocks are roller motors then yes you can swap cams safely
Aside CV/GM models, '86-'88 T-Birds/Cougars and post-'91 trucks had a roller non-HO firing order cam.
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