i have some injectors that come in a tb i bought on here that don't look like any ive seen in a tb i've ever messed with..they seem to fit and the guy said they were in there when he bought it..but he never tried it...the pics i have suk but i'll post anyway...the numbers on them are...01B203B.then two short numbs one on either side of the inj they are004 on left bottom and 281 on right bottom..any help is great...thanks...oh and the tops are blue which i thought was odd too

 

another view..like i said the pics suk but i cant help that

 

Weird. May not even be a GM part.

 

Those look like the ones I have run across on the 1996 350 Vortec TBIs. If they are, they are about 70 lbs/hr.

 

i have a set of new 1995-1996 TBI 7.4 L injs never used out of same TBI unit. they are rated 45 lbs per turbo city and at 28-32 lbs FP per GM dealer. that goes to show you GM was able to run high pressure in them no problem. more than likely gave better fuel atomization at idle.

 

do they look like these that i have?I am just wanting to know what these are and if they are of any use to me....thanks

 

i dont recognize those #'s as GM. i wanna say GM uses numbers only that are stamped on top of inj. if you do a search you will find posting on "all" those inj's GM offerred. i sent turbo city an email and they responded with the flow #and FP rated at. i assumed my inj's were a "stock" application(45 lbs) as they came in a brand new 7.4L TB. the seller may have swapped originals out but that i feel is unlikely. i think Holley inj's fit the GM pod. not sure if other(Mopar) fit GM pod.

 

4.6L 281 cubic inch V8 TBI Injector?

 

Are you sure those B's aren't 8's?

 

vortec 350s were multiport my dad has one

 

Not in a 1996 G20 they weren't. Where do you think the GM TBI-Vortec manifold came from (they didn't just make it for our enjoyment). I happen to have one, it lacks the GMPP logo, but is the exact same down to the part number.

 

yea the hot rodders soon realized the flow potential of those truck heads. some issues developed in bolt pattern but that was overcome. i think in past couple years there are a multitude of intakes developed. GMPP may have developed the first alum vortec as well for aftermarket.

 

My first head swap was actually an engine/head swap. It was a TBI 406 Vortec into a Square Body Caprice TBI. That was about 8 yrs ago. The heads, intake, injectors came from a wrecked 1996 G-series Van.