GF-90 Fuel Filter for 1963 Z06

[Rick A.]

Alright, which one is it for my July, 1963 Z06

1) Black, with white letter silk screening
2) Silver, with red letter silk screening
3) With or without grooves on the nut

Enquiring mind needs to know!

[Kenneth S.]

[Rick A.]

Re: GF-90 Fuel Filter for 1963 Z06

I know what the judging guide says - but which should be on my July Z06? are you saying, either one would received full credit in judging, as long as it DOES NOT have the grooves?

[Mike M.]

Re: GF-90 Fuel Filter for 1963 Z06

absolutly, positively no grooves on inlet or outlet nuts. i prefer silver color but that's a tad controversial. grooves non-controversial. mike

[DANNY PANTUSO]

Re: GF-90 Fuel Filter for 1963 Z06

Rick, you need the black or the silver one but you can,t have no grooves on the the nut, my Top Flight 63 z06 tanker got full points on my GF-90 fuel filter,

[Rick A.]

Re: GF-90 Fuel Filter for 1963 Z06

so, anyone have any WITHOUT grooviness!? (VBG)

[DANNY PANTUSO]

Re: GF-90 Fuel Filter for 1963 Z06

Good luck finding one, Danny

[Randy R.]

Re: GF-90 Fuel Filter for 1963 Z06

Where does one find a GF-90, either black or silver WITHOUT GROOVED NUTS? I've been looking for years and now have quite a collection of grooved nut filters.

[Mike M.]

Re: GF-90 Fuel Filter for 1963 Z06

rick and randy: don't pay big bucks for what is represented as an original non-grooved filter without requesting the seller to let you sand on the nuts with 240 paper as the grooved serv replacemnet nuts have been silver soldered the re-cad plated and sold as originals. if the sandpaper reveals a multicolored nut, pass on it. if its not been soldered, buy it and get it plated later.mike

[John D.]

Re: GF-90 Fuel Filter for 1963 Z06

They is somewhat of a repro of this filter. It's a black AC Gf-90 without the groove. Cost is close to $200.00 Contact Richard at LI about this part. He was handling them. They will fly on a restored car but would not be correct for a bow-tie as it is a repro part. The part was not serviced over the counter without the grooves. I may not be totally correct but I have a NOS with a 1969 box and it has some grooves that are very slight. It seems that the grooves got deeper as time went on. I heard there is a repro of the AC GF-90 being made (not the fat one) but it has the grooves. Had I been involved or consulted the judges would have been happy. If you want to know more inside info on the filter email me. I won't be able to reply until tomorrow. John

[Mike M.]

Re: GF-90 Fuel Filter for 1963 Z06

john: i have a service replacement in the old gm box that lacks the grooves, is silver and is identical to the original off the Doc Blatchley ZO6 filter, hence i believe that the service replacements of the early to mid-60's lacked the grooves. regards, mike

[William C.]

Correct Mike, I have one also, "from the era" *NM*

[Verne Frantz]

Re: GF-90 Fuel Filter for 1963 Z06

Does anyone know when the ones with the grooves first appeared, either through service or repro? I have what I "thought" was probably the original silver one, with the fittings and original hose still on it from a Jan. '64 car. The carb was changed in the late '90s and this stuff was saved along with the carb and the chrome vac adv tube and choke tube and filter bracket. The filter has the grooves on the nuts. I suppose it could have been a replacement, but it sure looks aged like the rest of the original stuff on the motor.
This car has never been in the hands of a "restorer"; it has just been "maintained" through it's life and is truely a "driver".

By the way, if someone could post a couple pictures of a correct '64 365hp (carb and intake views without aircleaner) I would appreciate it, since I'm trying to put it back together correctly.

Thanks
Verne

[Michael H.]

Re: GF-90 Fuel Filter for 1963 Z06

Verne,

The well known Krughoff green/saddle 65 FI conv was found with only 1586 miles on it. Parked in 65 and never wiggled again until Bill Stephenson found it in the late 70's. It had it's original black GF-90 filter with grooves in each fitting.

If 63 was without grooves, the change must have occured some time betwen 63 and 65.

[Michael H.]

Re: GF-90 Fuel Filter for 1963 Z06

Forgot to mention, 1963 pilot line Corvette, #00002, had a silver filter without grooves when it left the end of the assy line.

Also, a photo of a new 63 complete engine assy, taken in July/Aug 1963, shows a silver filter without grooves.