What kind of injectors do I have? (TBI)

[jdyates]

Swapped in some injectors that I pulled off my brother's '91 OOBS Suburban, not sure what kind they are. The motor is a 350 just like mine but the injectors look different. They are silver instead of bronze and on the bottom where the screen slides on, there is 4 openings instead of three like mine had. They run exactly the same as my old ones (I didn't notice a difference), but we've been puzzled as to why they are different. Also, my injectors had a little Torx opening (to turn the injectors in the pod, I suppose), and the ones I swapped in don't.

These numbers are on the top:
0067
(plug)
R1-546

 

[95Escahoe]

It goes by what color those top prongs the injector wiring snaps on to

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[jdyates]

They are red. I read somewhere that that means they are 454 injectors? If so, SWEET.

 

[95Escahoe]

http://www.gearhead-efi.com/Fuel-Injection/showthread.php?81-GM-Injector-size-color-and-part-numbers

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[jdyates]

What do those mean when they say two different colors? On both injectors, both prongs are red.

 

[TylerZ281500]

u have 350 injectors

 

[95Escahoe]

u have 350 injectors

X2 it says the number on top if there OEM gm injectors

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[jdyates]

X2 it says the number on top if there OEM gm injectors

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Nah, they don't say "GM" on the top like my originals did. I was just wondering why they had 4 holes under the injector screen since my other ones had 3.