This is topic I have a 5.0 with a old era 302 1-5-4-2-6-3-7-8 firing order WTF?? in forum Tech Talk at Northern California Ford Owners  .


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Posted by 66 AC COBRA (Member # 904) on :
 
bought a cheap 89gt for the motor/tranny, so i can smog my race car

swapped everything over to the race car, new plugs and a cap and wire set i had that was almost new

put the wires back on according the a regualr firing order for a 5.0, 1-3-7-2-6-5-4-8, and it ran like utter dog shit

change the firing order after fucking with it for a few days, and bam, it runs


anyone ever run into this before

im guessing it has a $99 summit hydraulic flat tappet cam in it from a 70's era 302
 

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Posted by JohnB (Member # 969) on :
 
Or it's a non-HO engine with an HO badge. I've seen this alot.
 

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Posted by 66 AC COBRA (Member # 904) on :
 

quote:

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Originally posted by JohnB:
Or it's a non-HO engine with an HO badge. I've seen this alot.

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very well could be, ill check around to see if i can find a date code

do non ho motors have e7 heads
it does have an ho intake

is there any easy way to tell with the motor in the car all hooked up

hey jon, found a short in the system, thats why it was making smoke out of that little scanner
 

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Posted by JohnB (Member # 969) on :
 
Yup, most have E7's. Does it have stock HO valve covers, or do they look like 93 cobra ones (stamped steel)? Stamped steel ones came on Non-HO versions.
Good find on the wiring!

BTW, do you still have the parts car? I need some fuel tank stuff (mounting bolts, lines to/from the pump, retaining ring, bracket for the fuel filter...well, basically everything minus the tank!)
 

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Posted by zpyro35 (Member # 3745) on :
 
SO 5.0s have the weird firing order, and do NOT have the E7 heads.
my SO has an HO upper intake, they're practically the same, just the HO flows better.
the firing order of the SO is the 1-5-4-2-6-3-7-8
most everything from the HO can be swapped over to the SO, including headers, intake, injectors, etc.
though I really don't see why somebody would swap a HO for a SO
 

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Posted by 66 AC COBRA (Member # 904) on :
 
it has HO cast valve covers, i dont know whats up

zypro, so and ho motors have e7's
 

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Posted by zpyro35 (Member # 3745) on :
 

quote:

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Originally posted by 66 AC COBRA:
it has HO cast valve covers, i dont know whats up

zypro, so and ho motors have e7's

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maybe if it was from a truck it'd have e7s, but on anything else they aren't. I have a SO in my bird
 

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Posted by asskickn88 (Member # 4957) on :
 
A non HO flat tappet cam will fit an HO roller block. You could have someone who wanted to put a cheap cam in their roller moter and changed it over.
 

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Posted by 1WICKEDmach (Member # 4060) on :
 
I have a non HO motor in my garage, and it dosent have the E7 heads. Also the pistons arent notched.
 

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Posted by Gt88 (Member # 4361) on :
 
Hey, maybe the guy the smashed into the front fender to 'move the car over' swapped in a short block from a '76 granada? I mean, that was one well maintained unit you parted out there, bud!

Now quit horsing around, get it smogged, and put the REAL motor in there!

 

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Posted by 5OHS5OH (Member # 4665) on :
 
You want I should find the guy that sold it to you smack him around for the info ?
 

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