Top Feed injectors...Shorty or long???...

[oz240red]

My friend is having his GTO built by a friend of his at a shop. I told him that I wanted bigger injectors and he said he can probably get four for me, but he asked me if the ones I needed were "shorty" or "long" injectors. Does anybody know what this means?

[BoostFab]

My friend is having his GTO built by a friend of his at a shop. I told him that I wanted bigger injectors and he said he can probably get four for me, but he asked me if the ones I needed were "shorty" or "long" injectors. Does anybody know what this means?

get the long version; the shorty version overall length is only 48mm.

[oz240red]

cool, thanks man.

[oz240red]

quick question, the part of the injector that plugs into the runners, are all of them standard size? because they will probably be from a mustang or something, so I don't know if they have a different diameter.

[BoostFab]

quick question, the part of the injector that plugs into the runners, are all of them standard size? because they will probably be from a mustang or something, so I don't know if they have a different diameter.

not all of them are the same, so you need to look at the their technical specs to determine if it will fit your requirement/needs.

[steve s14]

My buddy got the long ones and the foward most part of the Jim wolf fuel rail would hit the hood. He ended up putting in the short ones.That was on a twin cam, I don't remember what brand of injectors they were.

[oz240red]

thanks guys, I'll take a sample injector to compare, and if they fit I'll post some pictures. I hope they fit, if not I'll get the DW's

[zismo02]

Your gonna need denso style injectors.

The kind of injectors that GM's have may be different.

[oz240red]

Thanks man. Though my friend had good intentions on hooking me up with some free injectors, I don't think we'll find any that fit the KA on that shop, which works mostly with mustangs and V8's.

[WDRacing]

I use Ford Racing 42lbers and a custom fuel rail. But you can use the project silvia top feed rail and it should work fine.