Well, I received my RV275s, took them apart, put them in the ultrasonic cleaner, removed all the carbon and they look pretty good. Took out the injector out of #1 cylinder. It is all black, a lot of carbon is deposited on it. And, it has a 7-hole nozzle. Does the stock stick have 7 holes? The part number on the body is 0432193629, which is a "stock" injector, but all performance injectors are built on Bosch bodies. How can I tell if I had upgraded injectors in the truck already? I never drove anything else and have no reference mark.
I will put in the 275s and if they feel weaker I guess I will know. But I thought I heard stockers are 5-hole? Does anybody know?
Thanks!
-P

 

Good question. I'd like to know as well.

 

I am pretty sure stock ones have 7 holes

 

I just went to the garage and looked. My stock injectors have 7 holes, at least as far as I can tell. The holes are very small and my sight is not what it used to be. I would still bet money on there being 7.

 

432193630 is the stock part # for a 1998.5-2000 auto, 432193629 is the stock part # for a 1998.5-2000 manual. The RV 275 should be 432193635.

 

Thank you, this is what I was hoping to hear.
I did find the 0432193629 number pointing to Stock injectors, but I know also that sometimes custom nozzles are installed in stock bodies. So I was thinking how can one identify those. Maybe the maker stamps the nozzle then?
I will take ones I took out yesterday to work tomorrow, clean them and look with a strong magnifier. The RV275s have 7 holes, I studied them very well while I was taking them apart to clean them. These have 7 holes as well, but I think the holes are a tad smaller, hopefully the magnifier will help me see that.

 

on this same topic.....Does anyone know what this Injector # is 0432193652??