RUNNIG WARM

[JOHNNY MILLER]

ANYBODY HAVE LUCK WITH A HELPER FAN (PUSHING), IF SO WHAT BRAND. PROBLEM 1972 ORIGNAL  402 LIKES TO RUN 200 TO 225 NEW 4 CORE ALUMIUM RADIATOR, NEW WATER PUMP ECT. ANY ADVICE WOULD ME GREAT AND APPRECIATED

[72-CLASSIC_RIDE]

Have you checked your thermostat?  What Temp is it designed to Open/Close?  Also, what is reading your Temp?  Possibly a false reading?  Historically, what temp was it running before?  Do you have the correct Radiator Pressure Cap?  

I have a 402 and my factory temp gauge doesn't get above 190 degrees tops in the hottest days but I don't believe that gauge is all that accurate either.  I haven't worried about it since I put a 2 Core Aluminum Radiator in around 7 years ago.

I have heard Big Blocks don't like heat, so the lower you can maintain that Temp, I guess all the better.

Good luck.

Doug

[A_Rescue]

If the cooling system is functioning and the gauges are intact... check the ignition timing....

 

john

[Leghome]

I had a bad sending unit in one of my vehicles that acted the same way

[JOHNNY MILLER]

THANKS FOR ALL THE  INFROMATION 160 DEGREE THERMOSAT.GAUGE COULD BE OFF, BUT IT VALOR LOCK ONE TIME. THAT WHAT GOT ME WORRIED. THAT THE REASON I WAS THINKING OF HELPER FAN. ENGINE IS OLD COULD NEED REBUILTING. THANKS 

[dejh22]

Do you have a fan shroud? Do you have the bypass hose installed?

 

[JOHNNY MILLER]

YES, BUT FAN IS ABOUT 6 INCHES FROM FAN

[dejh22]

The fan should be inside the tunnel. I run a flex fan with a 2" spacer. I have the correct big block shroud with the tunnel. The tunnel is the same on small block and big block. I'm running a 180 thermostat. On a hot summer day my big block will run at about 190. Let me add that I just rebuilt the engine a year ago.