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Re: overheating 440---could the head gaskets be on wrong??? [Re: F6F6Dodge] #638722 03/13/10 05:31 PM 03/13/10 05:31 PM
Joined: Jul 2003 Posts: 6,342 SE PA. Q QuickBpBp master
QuickBpBp master Q Joined: Jul 2003 Posts: 6,342 SE PA.	Quote: It seems to be better on the interstate at highway speed, but once slowed down in traffic is when the vapor lock situation starts....As far as the fan goes-----I have a 7 blade big pitch after market direct drive fan-----it pulls air through the radiator like a vacuum cleaner..... Ok what's the size of the radiator? I had a similar deal on my 64 Dodge...I went from a 2 core to a 3 core and never had a problem again. It got so hot once on a humid,hot summer night,it vapor locked shut-off & melted the shifter cable and was stuck in high gear... Example if your using a small block radiator w/22 inch radiator support it will stay hot down the highway but with alot of air it helps get rid of heat under the hood. But then it gets really hot in traffic due to the low volume of water it has to cycle to keep cool even if the fan works great... EDIT...Sorry I saw your post the one about the new 5 core it that's the case the top and bottom tanks must be huge...If they are stock tanks don't know how that would work... Last edited by QuickBpBp; 03/13/10 07:10 PM.

Re: overheating 440---could the head gaskets be on wrong??? [Re: QuickBpBp] #638723 03/13/10 05:46 PM 03/13/10 05:46 PM
Joined: Jan 2007 Posts: 1,444 NEW JERSEY D dynamite pro stock
dynamite pro stock D Joined: Jan 2007 Posts: 1,444 NEW JERSEY	I fought for years to get mine to cool..26 in rad 3 different types of cooling fans 2 different radiators ,,would be cool in traffic but heat up at highway speeds..Finally a guy had a radiator out of a Ford V10 pickup,,I made it fit,and with dual cooling fans it has a hard time getting to thermostat temp..I cant get it to run hot...most of the time I don't even use the fans, only when stopped in traffic... 5862863-larrys56small.jpg (52 downloads)

Re: overheating 440---could the head gaskets be on wrong??? [Re: F6F6Dodge] #638724 03/13/10 06:13 PM 03/13/10 06:13 PM
Joined: Mar 2003 Posts: 1,806 Newfoundland Canada M Mopar1 top fuel
Mopar1 top fuel M Joined: Mar 2003 Posts: 1,806 Newfoundland Canada	Quote: New 5 core type radiator-------larger cam--pulls very little vaccuum around 11 pounds I think....standard 750 cfm Edelbrock carb...I'm thinking of taking the car to a Chassis Dyno to see if they can help---does this sound like a good idea or waste of money??? Cam size is the next larger than a six pack size... Are the top and bottom tanks on the new rad stock size or are they larger? If the tanks are stock size I would suspect the rad. If you have 5 cores jammed into a stock tank the cores are going to be a lot smaller and will restrict coolant flow.

Re: overheating 440---could the head gaskets be on wrong??? [Re: Mopar1] #638725 03/13/10 10:11 PM 03/13/10 10:11 PM
Joined: Dec 2006 Posts: 602 N.E.Ohio P pacifica mopar
pacifica mopar P Joined: Dec 2006 Posts: 602 N.E.Ohio	Have you put a thermometer in the hot coolant to see actual temp? Does the coolant circulate looking in the rad with the cap off?

Re: overheating 440---could the head gaskets be on wrong??? [Re: pacifica] #638726 03/13/10 11:10 PM 03/13/10 11:10 PM
Joined: Feb 2003 Posts: 10,205 Someplace you aren't S SomeCarGuy I Live Here
SomeCarGuy I Live Here S Joined: Feb 2003 Posts: 10,205 Someplace you aren't	Mismatched pulley set? Shroud? Timing? That POS Eddy should be OK on the mix not being too lean. Still good idea to look at the plugs. I 2nd a Milo or Eddy high flow pump. I use the Eddy, have on two BB's. Can't get them hot. I want my fair share

Re: overheating 440---could the head gaskets be on wrong??? [Re: QuickBpBp] #638727 03/14/10 11:07 AM 03/14/10 11:07 AM
Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska R RapidRobert Circle Track
RapidRobert Circle Track R Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska	With a candy thermometer or a good mechanical gauge I'd find out exactly what your temps are (on the hiway and in town). Take the stat out for 1 day (the slower warmup wont hurt you just for 1 day). check for timing in the ballpark. Have a radiator shop suck up some rad coolant into the bottle and see if the blue fluid turns yellow (indicates a combustion leak) or if you have an emissions testing station close by have them stick the probe into the top of the rad & see if combustion gasses are present (you'll know in seconds). check for a vac leak (not sure the best way to do that). What do your plugs look like. You have a 5 row rad live every 24 hour block of time like it's your last day on earth

Re: overheating 440---could the head gaskets be on wrong??? [Re: RapidRobert] #638728 03/15/10 12:46 AM 03/15/10 12:46 AM
Joined: Nov 2009 Posts: 520 New Zealand nz383man mopar
nz383man mopar Joined: Nov 2009 Posts: 520 New Zealand	Is your new radiator still clean? Was your block hot tanked? I had a 383 block that sat for some time with the water galleries exposed to the air & once I started the engine & warmed it up scale started coming out & blocking the tubes in my top tank. I didn't think to check the radiator for some time as I had just re-cored it so I blamed everything else first. I had to get the tanks removed, core rodded re-soldered & I fitted a filter sock on the top hose nipple(& along inside the top tank), which I took off & cleaned every couple of weeks until all the scale had gone. Then I removed the sock & everything was back to normal. I don't think the "rebuilt" engine I bought was hot tanked! The scale in the block would not have helped with the cooling either.

Re: overheating 440---could the head gaskets be on wrong??? [Re: nz383man] #638729 03/15/10 05:20 PM 03/15/10 05:20 PM
Joined: Feb 2007 Posts: 126 Indiana F F6F6Dodge OP member
F6F6Dodge OP member F Joined: Feb 2007 Posts: 126 Indiana	The radiator still looks clean--there doesn't seem to be any scale build up..... Does anyone know if there is a difference between a water pump in a 440 motor that has a/c vs. one without a/c???? if so--where can I get one??? I was told the regular pump has 8 blades and the a/c one only has 6 blades to push the water......Thanks again for all the help!!!! Last edited by F6F6Dodge; 03/15/10 05:21 PM.

Re: overheating 440---could the head gaskets be on wrong??? [Re: F6F6Dodge] #638730 03/15/10 06:00 PM 03/15/10 06:00 PM
Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska R RapidRobert Circle Track
RapidRobert Circle Track R Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska	Quote: I was told the regular pump has 8 blades and the a/c one only has 6 blades Correct, as an A/C setup has a different pulley ratio to turn the WP pulley faster so the fan would move more air at idle/low speeds (to compensate for the A/C) but this would supposedly then make the WP cavitate at higher rpms from the faster WP impeller speed so they reduces the vanes to correct this. Myself I dont buy the cavitation worry and the $5 anticavitation disc welded on the 8 vane unit gives you much more flow. live every 24 hour block of time like it's your last day on earth

Re: overheating 440---could the head gaskets be on wrong??? [Re: RapidRobert] #638731 03/15/10 06:46 PM 03/15/10 06:46 PM
Joined: Feb 2007 Posts: 126 Indiana F F6F6Dodge OP member
F6F6Dodge OP member F Joined: Feb 2007 Posts: 126 Indiana	Thanks for the help, but I may have stumbled upon the real problem.....from another post on this blog----it would involve the Edelbrock 750cfm carb #1411......according to the other blog---this carb SUCKS!!!! is this true????

Re: overheating 440---could the head gaskets be on wrong??? [Re: F6F6Dodge] #638732 03/15/10 06:50 PM 03/15/10 06:50 PM
Joined: Jun 2006 Posts: 5,161 CT GTX MATT master
GTX MATT master Joined: Jun 2006 Posts: 5,161 CT	Yes, its true Now I need to pin those needles, got to feel that heat Hear my motor screamin while I'm tearin up the street

Re: overheating 440---could the head gaskets be on wrong??? [Re: GTX MATT] #638733 03/15/10 06:58 PM 03/15/10 06:58 PM
Joined: Feb 2007 Posts: 126 Indiana F F6F6Dodge OP member
F6F6Dodge OP member F Joined: Feb 2007 Posts: 126 Indiana	Could this be the reason my car runs hot-----lean condition from a P.O.S. carb???

Re: overheating 440---could the head gaskets be on wrong??? [Re: F6F6Dodge] #638734 03/18/10 05:53 PM 03/18/10 05:53 PM
Joined: Jan 2003 Posts: 338 Montreal Quebec STROKIE enthusiast
STROKIE enthusiast Joined: Jan 2003 Posts: 338 Montreal Quebec	Quote: Thanks for the help, but I may have stumbled upon the real problem.....from another post on this blog----it would involve the Edelbrock 750cfm carb #1411......according to the other blog---this carb SUCKS!!!! is this true???? 451 C.I. (400 block 440 crank) 750 cfm edelbrock (1411) No Problem with this carb... 22 inch rad, shroud,Mopar cluthfan Milodon high volume water pump and use more water instead of antifreeze if you don't use your car during cold weather... I use 90% Water 10% Antifreeze + 1 bottle of Waterwetter Never had Overheating Problem

Re: overheating 440---could the head gaskets be on wrong??? [Re: F6F6Dodge] #638735 03/18/10 08:27 PM 03/18/10 08:27 PM
Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska R RapidRobert Circle Track
RapidRobert Circle Track R Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska	Quote: Could this be the reason my car runs hot-----lean condition from a P.O.S. carb??? Been a few problems w the eddy 750 #1407. I believe your probem is elsewhere & been following this and I hope you discover it. live every 24 hour block of time like it's your last day on earth

Re: overheating 440---could the head gaskets be on wrong??? [Re: RapidRobert] #638736 03/18/10 08:41 PM 03/18/10 08:41 PM
Joined: May 2004 Posts: 136 MN 5 58pwrwgn member
58pwrwgn member 5 Joined: May 2004 Posts: 136 MN	You didn't say what kind of waterpump housing you were using, but this might be an interesting read. He had an over heating promblem with the top of the motor becoming hot. Sorry, I can't get the address to post. Go to the engine section. It is locked as the third post down. http://www.dodgecharger.com/forum/index.php/topic,60599.0.html Last edited by 58pwrwgn; 03/18/10 08:53 PM.

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