They almost look like lucas units, I don't think they are GM chimney style ones but not sure. Anyone know for sure I want to know how much #/hr they are and without knowing what they are the numbers make no sense.

 

Post any number found on them, maybe that will help. I will agree, the tips look like Lucas.

 

there was only a couple of numbers on them, 47 and 1a but I just now saw in the pic that there's a longer number on it. Didn't see it before, will have to note that at a later date. It looks like it says 6405309

 

Oh no....looks like I was right, they are almost 99% certain lucas chimney style. Someone in the UK must have put them in, they're all about lucas...the prince of darkness. Can't be much worse than all the sh!tty Rochester/multec ones. They ohm out perfectly cold & hot but the car gets crappy MPG so I was worried they're leaking but they're not (pressurized the rail) now I have to figure out how many # they are. Probably larger than stock 22s.

Looks like #19 on this page
http://www.injectorcleaning.co.uk/injtop.htm


GM / SAAB
CHIMNEY STYLE ALUMINIUM PINTLE CAP

 

Those look like factory Rochester injectors to me, either 87 or 88.

 

The rocherster/multecs have a smooth body like this:



I have plenty of those, all the vettes (L98 & LT1) and camaros (L98 & LB9) here have those, except my 87 has these funky ones.

 

Those are the multecs.

I have had a couple sets of the ones you posted first, they are OE. I'll bet if you look closely at them (above where the part number is on the side) you'll see the RP symbol.

 

No, there's no RP symbol on them.

 

Madmax is correct. What you have are Rochester Products injectors. They were installed in 1987 and 1988 L98's. The part number on them is 5235302 and they were factory rated at 22 lb/hr. They were not manufactured by Lucas.

 

You guys were right, I got one here, cleaned it off a bit and it's the rochester 5235302