fuel injector id - Third Generation F-Body Message Boards

kenwa26 · 09-07-2009, 08:53 PM

Im trying to track down an issue and need to check the injector sizes, does anyone know what engine size uses pn# gm5235279 with 3239 gm on the other side

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RFmaster · 09-08-2009, 03:36 AM

Quote:

Originally Posted by kenwa26

Im trying to track down an issue and need to check the injector sizes, does anyone know what engine size uses pn# gm5235279 with 3239 gm on the other side

GM 5235279 *RPD
Green/White
5.0L (305)
55 lb/hr (give or take depending on fuel pressure)

Referenced from:
http://www.thirdgen.org/techboard/tb...tock-fuel.html (55lb injectors on stock fuel pump)

//RF

kenwa26 · 09-08-2009, 12:05 PM

this may be a eureka moment, they will be insufficient to properly feed a 350 i assume? it stutters and backfires when you wack the throttle open

RFmaster · 09-08-2009, 07:57 PM

Quote:

Originally Posted by kenwa26

this may be a eureka moment, they will be insufficient to properly feed a 350 i assume? it stutters and backfires when you wack the throttle open

Well, possibly yes when you consider that 305 injectors are 2x 55 lb/hr and truck 350 injectors are 2x 61 lb/hr. You can try bumping up fuel pressure as a stop gap measure.

//RF