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Indentifying Holley carburetor
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July 28, 2026, 09:11:02 AM |
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H20Nut21Bahner
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Indentifying Holley carburetor
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on:
September 07, 2015, 01:44:02 PM »
I've briefly searched the interweb with no luck yet.
I have a Holley that the choke horn has been milled off. Is there any other way to identify what size it is?
The metering blocks have different numbers stamped on the side. Front has 73 jets, rear has 76
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TrollerDave
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Re: Indentifying Holley carburetor
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Reply #1 on:
September 07, 2015, 03:20:51 PM »
It's possible it might be stamped on the main body.
Are you able to post a pic?
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H20Nut21Bahner
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Re: Indentifying Holley carburetor
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Reply #2 on:
September 07, 2015, 07:49:30 PM »
Ive looked all over. Only numbers i found were stamped on side of metering block, different number front to rear.
I'll get some pictures in the morning
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H20Nut21Bahner
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Re: Indentifying Holley carburetor
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Reply #3 on:
September 07, 2015, 07:52:51 PM »
There are also some numbers stamped on the butterflies
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crewchief22
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Re: Indentifying Holley carburetor
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Reply #4 on:
September 07, 2015, 08:04:09 PM »
If the carb is off measure the diameter of the throttle bores front/rear. This along with some other basic info (double pumper, vacuum secondary, marine...) we should be able to identify what you have.
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Boat #1: '77 Hondo Pantera GT Jet
"Racing is life! Anything that happens before or after, is just waiting" Steve McQueen
The problem with America is stupidity. I'm not saying there should be a capital punishment for stupidity, but why don't we just take the safety labels off of everything and let the problem solve itself?
H20Nut21Bahner
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Re: Indentifying Holley carburetor
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Reply #5 on:
September 08, 2015, 10:18:11 AM »
So after cleaning off some heavily caked on mud and soot(was run on a circle track dirt car), I've come to the conclusion that it's a 750dp, manual secondary. Throttle bores measured roughly 1 5/8"
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crewchief22
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Re: Indentifying Holley carburetor
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Reply #6 on:
September 08, 2015, 10:21:57 PM »
That's a start. The DP from 650-800 all used 1 11/16 throttle bore diameters primary and secondary. 600's were 1 9/16 and 850's were 1 3/4. To narrow it down even more you'll need to measure the actual venturi.
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Boat #1: '77 Hondo Pantera GT Jet
"Racing is life! Anything that happens before or after, is just waiting" Steve McQueen
The problem with America is stupidity. I'm not saying there should be a capital punishment for stupidity, but why don't we just take the safety labels off of everything and let the problem solve itself?
H20Nut21Bahner
Hero Member
Karma: +15/-0
Reactions:
Re: Indentifying Holley carburetor
«
Reply #7 on:
September 08, 2015, 10:31:00 PM »
Thanks Keith. I picked up a marine 750, so it looks like this one will go back on the shelf unless someone needs a 750
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Indentifying Holley carburetor
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