351 with 302 firing order??

Mustang78

New Member

Feb 8, 2006

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Aberdeen, WA

Jun 19, 2007

#1

• Jun 19, 2007

• #1

i am looking at buying a rebuild kit(i have been waiting over 5 weeks for my PAW catalog........) so i checked out northern auto parts, here's a link to the kit but it says it must use the 302 cam/firing order, is that right?? Thanks

http://northernautoparts.com/ProductModelDetail.cfm?ProductModelId=1682

~Mark~

 

M

mercurycapri

Member

May 30, 2006

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washington

Jun 19, 2007

#2

• Jun 19, 2007

• #2

thats right

 

Mustang78

New Member

Feb 8, 2006

486

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Aberdeen, WA

Jun 19, 2007

#3

• Jun 19, 2007

• #3

well yeah i know that's what they sell, but what is the down side of running the wrong firing order for that engine? i know it was changed in the HO 302's to put less stress on the front of the crank/bearing..so there must be a reason

~Mark~

 

vristang

15 Year Member

Mar 31, 2005

4,933

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Seattle

Jun 19, 2007

#4

• Jun 19, 2007

• #4

If you are efi then you are stuck with the ecu firing order, regardless of how you move the injector plugs...


If you are carb, then I'm pretty sure you just have to re-route the plug wires.


jason

 

1987stangman

Member

Jul 12, 2006

684

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Jun 20, 2007

#5

• Jun 20, 2007

• #5

Looks like that it uses a cam that had a standard non-ho firing order. If you want to use EFI and a mustang computer you just need to ditch that crane cam and get a cam that uses a HO firing order. That kit looks like a kit for any 302 not just HO specific.

 

F

FoxChasis

20+ Year Stangneter

Dec 23, 2003

589

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Jun 23, 2007

#6

• Jun 23, 2007

• #6

Mustang78 said:

...firing order... I know it was changed in the H.O. 302s to put less stress on the front of the crank/bearing...

Click to expand...

The H.O. 5.0L has a different firing order than the S.O. 302 because of the cam. It came from a 1973 351W Torino engine. How millions of 221-260-289-302 engines STILL use the old firing order and aren't busted all to hell because of this supposed stress on the front bearing? That's a bunch of malarkey.

 

Mustang78

New Member

Feb 8, 2006

486

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Aberdeen, WA

Jun 23, 2007

#7

• Jun 23, 2007

• #7

hey foxchassis, i thought your name was spelled foxchassis not foxchasis(two S's, not one)...maybe i'm going crazy IDK..

Anyway i am staying carbed but want the most from this engine..will i lose any power or peace of mind if i use the 302 firing order in my 351w? i dont like to do screwy things like this because someday i WILL change the cam again, just to get the proper firing order..however i need to order a rebuild kit but every place i look seems to have some stupid thing that turns me away, like this for example

~Mark~

 

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FoxChasis

20+ Year Stangneter

Dec 23, 2003

589

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Jun 24, 2007

#8

• Jun 24, 2007

• #8

A little or a lot of power has been made with many different firing orders. Don't worry about it.