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Holley G Changeover Question

Posted: Mon Oct 30, 2023 10:30 am
by namdc3
Ford made 1914 model year cars until roughly April 1915. All the literature I’ve read just says that the Pat Pending top plate is 1914 and the Pat’d 1914 top plate is 1915. Would a late 1914 year model car have the patent dated carb with a black bowl? Does anyone know when the top plate and bowl switch actually occurred? Also, was the switch from brass bowl to black steel bowl perfectly aligned to the top plate change?

Re: Holley G Changeover Question

Posted: Mon Oct 30, 2023 11:39 am
by DanTreace
Gail Rodda's book says the Holley #6040 Model G was introduced mid-1914, all brass, lever and bowl. Smooth air inlet and marked Pat. Pending.

The 1915 used the same, except was marked Pat. Dec. 22, 1914

Believe the steel bowl was in 1916.


According to Bruce's Big Book, 1914 model year (fiscal) ran from Oct. 1, 1913 to July 31, 1914.

All later years were the new Ford fiscal year from Aug 1 to July 31 of the following year.

Re: Holley G Changeover Question

Posted: Tue Oct 31, 2023 12:26 pm
by namdc3
Thanks, Dan! I would guess the transition to the dated top plate happened before model year 1914 Model Ts ended production.

Re: Holley G Changeover Question

Posted: Tue Oct 31, 2023 1:45 pm
by Corey Walker
When I first got my 14 it had an NH in it and I wanted the correct carburetor and somebody sold me a Pat’d Dec 22, 1914 Model G. It had a steel bowl with the brass round knurled adjustment needle. Then I got to thinking that if the carburetor itself wasn’t even patented until after the 1914 model year had ended that that couldn’t be correct and so I bought a 4-ball Kingston instead. I’ve got a Pat’s Pending G with a brass bowl for it now as well but I would say the Pats Pending carburetors had to be used on the early 1915’s as well since the patent date is already a couple months into the 1915 model year.

Re: Holley G Changeover Question

Posted: Tue Oct 31, 2023 11:49 pm
by Corey Walker
I was looking through some pictures and I found this. I got this one this way, I’d say it’s an early 1915 based on that it still retains the Pat’s Pending mixing chamber cover but has the first version of the T shaped spray needle which has the brass crossbar threaded on and pinned. It also uses steel round head slotted screws for the idle adjustment and locking screw instead of the earlier brass hex head/slotted combination screws. It has a steel bowl. Now all those parts could have been changed in 100 years but probably the bowl if anything was the only part replaced since the brass ones crack but I would say this was an original from the transition period.

Re: Holley G Changeover Question

Posted: Wed Nov 01, 2023 11:00 pm
by namdc3
Thanks for the info. I think the 1915 model year began well before the 1914 model year ended for some body styles and assembly locations, so there were probably “1914” cars with “1915”carburetors. Those are interesting little design details on the running G changes.