Holley/Edelbrock/Clay Smith 6-valve rebuild kits still available?
06-23-2015, 09:24 AM
#1
Holley/Edelbrock/Clay Smith 6-valve rebuild kits still available?
I tried out my old reliable Holley 6-valve mechanical fuel pump, and sadly, it is leaking fuel out the diaphragm. I have looked high and low for a rebuild kit for one of these things, and it appears that they are now unobtainium. You can't find the pumps anymore either. All you can find is the "new" Holley / Big End style pumps that do not have the billet actuating arm. I tried calling Clay Smith a couple of times and left voice mails for them, but never heard back.
So right now I am left with the prospect of trying to find another pump that will hopefully still work. I have a brand new Holley #510-12-454-11 that is rated for 110 GPH, but it is not the 6-valve design and does not look to be nearly as heavy duty as the "old school" ones. Will one of these support an engine that is making 550 - 575 HP?
http://www.jegs.com/i/Holley/510/12-...aFUhoCeRPw_wcB
So right now I am left with the prospect of trying to find another pump that will hopefully still work. I have a brand new Holley #510-12-454-11 that is rated for 110 GPH, but it is not the 6-valve design and does not look to be nearly as heavy duty as the "old school" ones. Will one of these support an engine that is making 550 - 575 HP?
http://www.jegs.com/i/Holley/510/12-...aFUhoCeRPw_wcB
06-24-2015, 08:07 AM
#4
I spoke with Sherry at Clay Smith Engineering yesterday evening. She was very helpful. She said that Holley and Edelbrock had them set the 130 GPH pumps up with a lighter spring to keep users from having to use a regulator, but that they had reservations against this from concerns of customers burning down their motors. She recommended rebuilding the pump with their heavier spring and valves, which would result in a pump that can flow 130 GPH at 14 PSI. Of course this would require some type of regulator. They recommend a bypass over a dead-head regulator - she said the return could be plumbed back to the fuel/water separator if I did not want to run it all the way back to the tank. They have a bypass valve that uses a spring to set the bypass pressure - it comes with a 7 lb spring installed. Price seemed a little steep at $60, but I have not shopped them to compare.
So, at this point I am trying to decide if I can just go with a 6-valve pump with the standard spring and no regulator, or rebuild my pump and go with the higher pressure spring and a regulator. If I go this route, do I go with a dead-head regulator or a bypass with the check valve arrangement? Decisions, decisions...
FWIW, Sherry told me that Clay Smith will actually rebuilt the pump for the same price as buying the kit ($75) and doing it myself.
So, at this point I am trying to decide if I can just go with a 6-valve pump with the standard spring and no regulator, or rebuild my pump and go with the higher pressure spring and a regulator. If I go this route, do I go with a dead-head regulator or a bypass with the check valve arrangement? Decisions, decisions...
FWIW, Sherry told me that Clay Smith will actually rebuilt the pump for the same price as buying the kit ($75) and doing it myself.
06-24-2015, 08:40 AM
#5
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06-24-2015, 06:49 PM
#6
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iTrader: (3)
I spoke with Sherry at Clay Smith Engineering yesterday evening. She was very helpful. She said that Holley and Edelbrock had them set the 130 GPH pumps up with a lighter spring to keep users from having to use a regulator, but that they had reservations against this from concerns of customers burning down their motors. She recommended rebuilding the pump with their heavier spring and valves, which would result in a pump that can flow 130 GPH at 14 PSI. Of course this would require some type of regulator. They recommend a bypass over a dead-head regulator - she said the return could be plumbed back to the fuel/water separator if I did not want to run it all the way back to the tank. They have a bypass valve that uses a spring to set the bypass pressure - it comes with a 7 lb spring installed. Price seemed a little steep at $60, but I have not shopped them to compare.
So, at this point I am trying to decide if I can just go with a 6-valve pump with the standard spring and no regulator, or rebuild my pump and go with the higher pressure spring and a regulator. If I go this route, do I go with a dead-head regulator or a bypass with the check valve arrangement? Decisions, decisions...
FWIW, Sherry told me that Clay Smith will actually rebuilt the pump for the same price as buying the kit ($75) and doing it myself.
So, at this point I am trying to decide if I can just go with a 6-valve pump with the standard spring and no regulator, or rebuild my pump and go with the higher pressure spring and a regulator. If I go this route, do I go with a dead-head regulator or a bypass with the check valve arrangement? Decisions, decisions...
FWIW, Sherry told me that Clay Smith will actually rebuilt the pump for the same price as buying the kit ($75) and doing it myself.
You have addressed your pickup issue, just run a good sized line feeding the pump, and a fuel filter/separator capable of some flow. These pumps can move lots of fuel, but they wont if you cant get the fuel TO them.
06-24-2015, 06:58 PM
#7
Registered
iTrader: (2)
I spoke with Sherry at Clay Smith Engineering yesterday evening. She was very helpful. She said that Holley and Edelbrock had them set the 130 GPH pumps up with a lighter spring to keep users from having to use a regulator, but that they had reservations against this from concerns of customers burning down their motors. She recommended rebuilding the pump with their heavier spring and valves, which would result in a pump that can flow 130 GPH at 14 PSI. Of course this would require some type of regulator. They recommend a bypass over a dead-head regulator - she said the return could be plumbed back to the fuel/water separator if I did not want to run it all the way back to the tank. They have a bypass valve that uses a spring to set the bypass pressure - it comes with a 7 lb spring installed. Price seemed a little steep at $60, but I have not shopped them to compare.
So, at this point I am trying to decide if I can just go with a 6-valve pump with the standard spring and no regulator, or rebuild my pump and go with the higher pressure spring and a regulator. If I go this route, do I go with a dead-head regulator or a bypass with the check valve arrangement? Decisions, decisions...
FWIW, Sherry told me that Clay Smith will actually rebuilt the pump for the same price as buying the kit ($75) and doing it myself.
So, at this point I am trying to decide if I can just go with a 6-valve pump with the standard spring and no regulator, or rebuild my pump and go with the higher pressure spring and a regulator. If I go this route, do I go with a dead-head regulator or a bypass with the check valve arrangement? Decisions, decisions...
FWIW, Sherry told me that Clay Smith will actually rebuilt the pump for the same price as buying the kit ($75) and doing it myself.
