Edelbrock water pump
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Drifting
Joined: Jul 2022
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From: Wisconsin
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Edelbrock water pump
I got a Edelbrock high flow water pump as a gift, It was like $300. Is this better than the original style cast iron one? Can a water pump flow too much?
The web site says: Edelbrock #8850 Water Pump Big Block Chevy Short Ideal To Prevent Overheating In Street Rods And Street Machines
The web site says: Edelbrock #8850 Water Pump Big Block Chevy Short Ideal To Prevent Overheating In Street Rods And Street Machines
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Joined: Nov 2006
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From: Sunshine Coast, Queensland, Australia
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As per high flow water pumps. I've heard opinions both ways. Some say sending the coolant through the radiator faster doesn't give it time to disapate heat. Others claim it works better.
I've run both on my small block. My observations. A high flow pump with a standard flow thermostat is kinda like pissing up a rope. High flow thermostats seem to help with both standard flow and high flow pumps.
On my car. Could not see any difference in cooling between the high flow and standard flow pump when running a high flow thermostat. I have noticed a difference between types of thermostats.
A number of things affect the cooling systems in these cars. They are fairly fussy when it comes to the cooling system.
But my personal experience is that I found no real difference in cooling between the 2 types of pumps. Keeping in mind I live in Queensland Australia. And it gets plenty hot here very often.
I've run both on my small block. My observations. A high flow pump with a standard flow thermostat is kinda like pissing up a rope. High flow thermostats seem to help with both standard flow and high flow pumps.
On my car. Could not see any difference in cooling between the high flow and standard flow pump when running a high flow thermostat. I have noticed a difference between types of thermostats.
A number of things affect the cooling systems in these cars. They are fairly fussy when it comes to the cooling system.
But my personal experience is that I found no real difference in cooling between the 2 types of pumps. Keeping in mind I live in Queensland Australia. And it gets plenty hot here very often.
Team Owner
Joined: Apr 1999
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From: Reno Nevada
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I never leave home without my Edl team G aluminum water pump. I think that it's probably 20 years old.
I also use the Stant high flow 195 degree thermostat with a couple of 1/8rh inch holes drilled in it .
I also use the Stant high flow 195 degree thermostat with a couple of 1/8rh inch holes drilled in it .
Team Owner
Joined: Jun 2001
Posts: 23,367
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From: Virginia USA
Exactly. It's also saves a little weight and was one of the things I changed out to get me to 2994 lb. according to the trash dump scale.
Safety Car
Joined: May 2001
Posts: 4,746
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From: Fairfax Virginia
I upgraded to that particular high flowing Edelbrock water pump (and paid for it) and it works very well. I pulled a Stewart Stage 2 water pump off because it was cast iron and substantially heavier. The Edelbrock looks good and performs well so I would put it on your Corvette. I have run "high flow" pumps for a long time and never had an issue with one. I also have the Stewart's Pre-drilled Thermostat in my 427 to help the cooling system.
The DeRale electric cooling fan control has a thermo-couple that mounts on the lower outlet of the radiator. It is a PWM electric fan controller that makes life so much quieter running the fans at reduced speeds until the engine warms up and the fans spin faster to compensate for the extra heat.
The DeRale electric cooling fan control has a thermo-couple that mounts on the lower outlet of the radiator. It is a PWM electric fan controller that makes life so much quieter running the fans at reduced speeds until the engine warms up and the fans spin faster to compensate for the extra heat.
Safety Car
Joined: Nov 2005
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From: Arizona - If you don’t know CFI, STOP proliferating the myths around it...
I run an Edelbrock high flow pump and 185* stat and my motor runs normally at 170-175*. I live in Arizona, same as Australia I guess, it's frickin' HOT! 
Drifting
Joined: Oct 2005
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From: East London/SW Essex UK
Had my '68 L36 close to 25 years - stock cast iron water pump had presumably been run for years with only water for coolant - the steel impeller blades were badly corroded and obviously ineffective. Bought a Weiand HiPo Ally replacement (still using now). 15 years or ago I installed a 489 cu in stroker engine and ir was time for the knackered radiator tobe replaced. Bought a DeWitt's Ally unit - great product. Still had overheating issue on hot humid days - tried 160 and 180 thermostats - they didn't really help. I suspected that water flow through the 'stat may be the issue. Dodnit want to destroy a themostat.I found an old Nissan 'stat in my sons old Bluebird stack. The opening plate and shaft is threaded. Its an easy job to adjust flow without drilling the 'stat itself!
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Race Director
Joined: Mar 2016
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From: Napa Valley California
I have a brand new Edelbrock Victor series hi flow polished aluminum water pump for a big block, PN: 8862, sitting on my shelf that I’m willing to sell, cheap.
It’s never been installed.
I purchased a serpentine belt system that included a water pump and now I have a spare.
Send me a PM if interested.
It’s never been installed.
I purchased a serpentine belt system that included a water pump and now I have a spare.
Send me a PM if interested.
Melting Slicks
Joined: Dec 2009
Posts: 3,225
Likes: 654
From: Thunder Bay
I have had the Edelbrock pump for over 20 years. When I blew up the 383 and replaced it with the 427 I figured the pump must be getting close to the end of its service life, so I sent it back to Edelbrock and they rebuilt it for a very reasonable fee. Six years later it’s still running strong. I have friends who have literally gone through ten pumps in that time.