Flow Kooler Water Pumps & Thermostats

[PurpleBeeper]

The Flow Kooler water pumps and high flow thermostats are supposed to (likely work) increase coolant flow. Has anyone ran a Flow Kooler setup in a big block & what were your results? Thanks!

 

[themechanic]

I installed both attempting to solve an overheating problem (200°F at idle when ambient temperature is above 85°F). I also installed stock pulleys with the correct diameter for AC. No bueno. The radiator is a copper/brass 054 retired a few years ago by US Radiator and I have the large 7-blade fan, short Hayden clutch, and factory shroud.

I just received a new Griffin radiator *part # 5-70004). Saved the most expensive buts for last chasing the problem. I'll be installing it today. Wish me luck.

P.S. I had the 440 engine professionally overhauled by a highly rated local engine shop last winter. The block was thoroughly cleaned.

 

[fullmetaljacket]

The Flow Kooler water pumps and high flow thermostats are supposed to (likely work) increase coolant flow. Has anyone ran a Flow Kooler setup in a big block & what were your results? Thanks!

They both work great together.

 

[BLK 68 R/T]

I had both in my 68 gtx. Never got hot in the summer in 100 degree weather and I had to block half the radiator in winter to get it to get hot enough to run the heater and defrost.

 

[twecomm]

In my 383, running with the factory original radiator which was "boiled out" at a rad shopping back in 2010. When putting the radiator back in, installed a proper fan shroud. Installed FlowKooler pump and Mildon hi-flow 180 thermostat. run with 50/50 antifreeze mix. No overheat issues ever.

 

[R413]

Marketing 101: flowkooler

Flow, more MUST be better right? Not necessarily
Kookier= cooler and that's what old car guys want

So flowkooler must be the ticket for cooling woes!

I never buy those type of hi-flow products for oil, fuel, coolant, etc, and don't have any cooling problems using. Stock replacement parts.

 

[themechanic]

I installed both attempting to solve an overheating problem (200°F at idle when ambient temperature is above 85°F). I also installed stock pulleys with the correct diameter for AC. No bueno. The radiator is a copper/brass 054 retired a few years ago by US Radiator and I have the large 7-blade fan, short Hayden clutch, and factory shroud.

I just received a new Griffin radiator *part # 5-70004). Saved the most expensive buts for last chasing the problem. I'll be installing it today. Wish me luck.

P.S. I had the 440 engine professionally overhauled by a highly rated local engine shop last winter. The block was thoroughly cleaned.

The Griffin doesn't fit. Only 1/8" clearance between the fan clutch and back of rad. Overpriced POS has several quality control issues, too.

 

[fullmetaljacket]

Marketing 101: flowkooler

Flow, more MUST be better right? Not necessarily
Kookier= cooler and that's what old car guys want

So flowkooler must be the ticket for cooling woes!

I never buy those type of hi-flow products for oil, fuel, coolant, etc, and don't have any cooling problems using. Stock replacement parts.

I agree. Chrysler made some great designs in radiator flow back in the day. Some of my friends have totally stock set ups and run all day at below 180, but with below 10.5 compression and milder cam profiles.
A particular local Max Wedge runs under 170* in NYC traffic with totally correct stock stuff on board such as cast iron pump and housing.
Another cat has a Dave Dudek Hemi in a Super Bee and runs under 180* all day long in NYC traffic. Aluminum pump and housing. Both are STICKS though.
Some engines are just HOT under the collar even if everything is beautiful and correct. Mine is one of them at 12.1 comp, but never runs over 190* in NYC traffic. Flow-Kooler aluminum pump and A990 Chrysler aluminum pump housing, 160* Chrysler brass (Robert Shaw type) thermostat, electric fan with shroud and Nascar aluminum radiator. Distilled water with Wetter. 9" Ultimate 4800 stall, 727 Auto.

 

[8formulas]

FWIW, my ticket to success re: cooling was always a Robert Shaw thermostat and a 216 mechanical fan with a heavy duty clutch by Hayden. It would have to be over 90 degrees outside for my engines to reach 185 degrees. And let me tell you, I'm not driving my cars in 90+ degree weather anymore. My engines can take it but I can't.

 

[Mopar Hunter]

The Griffin doesn't fit. Only 1/8" clearance between the fan clutch and back of rad. Overpriced POS has several quality control issues, too.

Can you send it back?

 

[BigFlo]

The Griffin doesn't fit. Only 1/8" clearance between the fan clutch and back of rad. Overpriced POS has several quality control issues, too.

In my 65 Belvedere with 383, I had to eliminate the clutch and use a direct drive fan for the Griffin to fit.