which fuel injectors are interchangable?
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Senior User
Joined: Jan 2006
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which fuel injectors are interchangable?
i grabbed some fuel injectors at the bone yards. one set was from an 88 351 and another was from an 88 302. they both look differant and have differant part #'s on them.
i was wondering if they were one and the same? especially if i'm gonna be using a set on my 89 302?
what about the cast iron exhaust manifolds from the 88 351; would i be able to use that on my 89 302? cuz my truck has aftermarket long tube headers rather than manifolds.
i was wondering if they were one and the same? especially if i'm gonna be using a set on my 89 302?
what about the cast iron exhaust manifolds from the 88 351; would i be able to use that on my 89 302? cuz my truck has aftermarket long tube headers rather than manifolds.
Last edited by bluneon; May 26, 2006 at 07:24 PM.
Lead Driver
Joined: Nov 2002
Posts: 9,557
Likes: 44
From: Concord, NC
If the 302 was in a truck, the injectors should be the same size (both yellow tops) as the 351. As long as they are yellow top, you can use them in your 89. The manifolds will definitely match the head ports, but I would think that the long tubes would be better.
Fleet Mechanic
Joined: Nov 2003
Posts: 1,500
Likes: 2
the key is the color..yellow's are 19lb and will work fine in this n on-MAF sesnor set-ups. As you get into the 1990's and start experieincing MAF systems, then you can have some fun with 24lb and 30lb injectors without screing up your milage and emisssions.
Lead Driver
Joined: Nov 2002
Posts: 9,557
Likes: 44
From: Concord, NC
Even on MAF systems you can't just swap in larger injectors and expect the computer to compensate. It is fueled based on the stock size injector; anything larger and it will not run properly. You can do things to account for the larger injectors, but the stock EFI system cannot adjust for larger injectors on its own.
Elder User
Joined: Mar 2006
Posts: 627
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FYI:
Visual comparison of the Ford Fuel Injectors, picture by TMoss:
http://www.veryuseful.com/mustang/te...ctor_Guide.jpg
Visual comparison of the Ford Fuel Injectors, picture by TMoss:
http://www.veryuseful.com/mustang/te...ctor_Guide.jpg
