L71 fuel pump
Thread Starter
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Joined: Dec 2024
Posts: 80
Likes: 40
From: The Plains, VA
2025 C3 of the Year Finalist - Modified
L71 fuel pump
Before I spend a bunch of money on an apparently rare, original type pump, does anyone have a good solution for a 427/435 mechanical fuel pump? I prefer a mechanical pump, and I don't want to run a Rube Goldberg web of fuel lines for a regulator or odd input/output angles. I'd just like to do what the factory did.
Drifting
Joined: Sep 2016
Posts: 1,492
Likes: 524
From: Ventura California
You need a AC 40482 fuel pump.
It took me a looong time to find a correct dated one for my 69 L89.
I bought it off this forum.
When I was at the Nationals in Vegas, I bought a NOS one so they are around, but it’s not dated.
Call Americas Finest Corvettes aka corvetteusa.com
Mike the owner had a NOS for sale awhile ago.
If you don’t want to spend the money, I believe you can buy reproductions for fairly cheap. I’m running a repop currently in my L71.
Works great.
It took me a looong time to find a correct dated one for my 69 L89.
I bought it off this forum.
When I was at the Nationals in Vegas, I bought a NOS one so they are around, but it’s not dated.
Call Americas Finest Corvettes aka corvetteusa.com
Mike the owner had a NOS for sale awhile ago.
If you don’t want to spend the money, I believe you can buy reproductions for fairly cheap. I’m running a repop currently in my L71.
Works great.
1967 Pedal Car Champion
Joined: Mar 2020
Posts: 9,137
Likes: 4,248
From: US-PNW
Before I spend a bunch of money on an apparently rare, original type pump, does anyone have a good solution for a 427/435 mechanical fuel pump? I prefer a mechanical pump, and I don't want to run a Rube Goldberg web of fuel lines for a regulator or odd input/output angles. I'd just like to do what the factory did.
Drifting
Joined: Sep 2016
Posts: 1,492
Likes: 524
From: Ventura California
Thread Starter
Advanced
Joined: Dec 2024
Posts: 80
Likes: 40
From: The Plains, VA
2025 C3 of the Year Finalist - Modified
Oh no, the current pump operates. A little too well. It is a Carter like the Ebay pump shown above and it gives a nice robust 12psi at idle. And to the credit of my Tri Powers, they hold the pressure for quite a while after shutdown. My intake manifold is a lovely gold color from the caramelized gas that eventually seeps out. I'm looking for a pump that runs between 5 and 7. Thanks
Race Director
Joined: May 2006
Posts: 18,737
Likes: 2,583
Oh no, the current pump operates. A little too well. It is a Carter like the Ebay pump shown above and it gives a nice robust 12psi at idle. And to the credit of my Tri Powers, they hold the pressure for quite a while after shutdown. My intake manifold is a lovely gold color from the caramelized gas that eventually seeps out. I'm looking for a pump that runs between 5 and 7. Thanks
Pump
Race Director
Joined: Mar 2017
Posts: 11,953
Likes: 4,508
From: Virginia
Oh no, the current pump operates. A little too well. It is a Carter like the Ebay pump shown above and it gives a nice robust 12psi at idle. And to the credit of my Tri Powers, they hold the pressure for quite a while after shutdown. My intake manifold is a lovely gold color from the caramelized gas that eventually seeps out. I'm looking for a pump that runs between 5 and 7. Thanks
Thread Starter
Advanced
Joined: Dec 2024
Posts: 80
Likes: 40
From: The Plains, VA
2025 C3 of the Year Finalist - Modified
Carter M4552, 7 psi
Pump
Pump
Last edited by rht69911s; Oct 14, 2025 at 03:36 PM.
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Thread Starter
Advanced
Joined: Dec 2024
Posts: 80
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From: The Plains, VA
2025 C3 of the Year Finalist - Modified
Racer
Joined: Apr 2010
Posts: 271
Likes: 158
I went with a generic NAPA replacement. It looks identical to the original except for the AC logo. The crimped pump rebuilds don’t give me the warm and fuzzies. Fuel pumps are not something I want to mess around with.
Drifting
Joined: Sep 2016
Posts: 1,492
Likes: 524
From: Ventura California
Fred Ballard is no longer taking work as he’s sick which is a huge blow for the restoration guys.