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Old 05-15-2018, 06:13 AM   #26
stsalvage
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Re: Overheating!!!!!

I run a ford or a dodge 7 blade fan Get the extreme duty 1974-77 fan clutch for the 454 and run a 4 core radiator witch mos of they guy pull out and put alums.I like the brass and copper radiators.They lasted over 50 years.Plus every thing hooks up to them no Modifying any thing.Just look.I have pic's Plus i check your water pump if you have weak water pump it will run Hot
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Old 05-15-2018, 06:17 AM   #27
stsalvage
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Re: Overheating!!!!!

I always use the 7 blade fan if not the 6 blade do not use a flex fan they will kill you one day
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Old 05-15-2018, 11:20 AM   #28
BCOWANWHEELS
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Re: Overheating!!!!!

those are real fans, a gm fan off a/c tk is all I,ve ever run with 0 issues
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Old 05-15-2018, 01:57 PM   #29
rjs53
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Re: Overheating!!!!!

Just dawned on me, what kind of water pump are you running? A high flow will actually pump water to fast, not allowing enough time thru radiator to cool. This is common in BBC, stock pumps work best
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Old 05-15-2018, 05:34 PM   #30
airbrushguy
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Re: Overheating!!!!!

Don't think its the fans, actually think the bottom hose is caving in. Going to put new hose and might as well get new pump while I'm at it. I use a '71 pump on an '89 motor for direction with v-belts.
Thanks for all your help, I'll let you know the outcome. Might even change sending unit, not a big fan of throwing parts at a problem, dad taught me to always go back to the basics when it was running well.
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Old 05-15-2018, 08:25 PM   #31
stsalvage
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Re: Overheating!!!!!

One thing that we all are forgetting how long did this engine set.You could have a blockage in the block or a Crack in one of your cylinder.My 1997 Roller motor after i had it together it kept getting hot.Do me one favor.when you fire up your truck Feel your top radiator hose.its its stone cold HARD your pumping compression in to the radiator and you will split that tank or warp your radiator
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Old 05-15-2018, 09:02 PM   #32
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Re: Overheating!!!!!

Does not sit, its my daily driver. Just hadn't taken long hi way trip in awhile.
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