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Re: what do you use to block off heater hose fitting on w.p
[Re: 602heavy]
#933948
02/22/11 07:57 AM
02/22/11 07:57 AM
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Joined: Oct 2003
Posts: 21,345
Marysville, O-H-I-O
70Cuda383
Too Many Posts
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Too Many Posts
Joined: Oct 2003
Posts: 21,345
Marysville, O-H-I-O
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Quote:
Might be missing something here cos i can't remember  .................blocking those heater hose outlets won't allow any water to flow through block & heads until thermostat opens , this is the reason for the 'loop' , fine to plug em off if you don't run a thermostat (or drill stat)........block temps will be a lot higher than temps @ water pump neck , with no water flowing through block & heads heads 'hot spots' will cause block scaling & worse still can crack when thermostat opens.
I don't know if that's true or not, but where does the water flow? it's not going through the radiator, so even then, when the thermostat opens, you'll still get a rush of cold water from the radiator flowing into the block and heads.
**Photobucket sucks**
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Re: what do you use to block off heater hose fitting on w.p
[Re: mcmopars]
#933949
02/22/11 07:59 AM
02/22/11 07:59 AM
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Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
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for those integral nipples the black neoprene caps from the "help" section at your parts house & a hose clamp is the only option & last a long time. A bit of gasket cement & recheck tightness once in a great while & you're good
live every 24 hour block of time like it's your last day on earth
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Re: what do you use to block off heater hose fitting on w.p
[Re: 70Cuda383]
#933950
02/22/11 10:02 AM
02/22/11 10:02 AM
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Joined: Dec 2008
Posts: 1,200
UK
602heavy
pro stock
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pro stock
Joined: Dec 2008
Posts: 1,200
UK
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Quote:
, you'll still get a rush of cold water from the radiator flowing into the block and heads.
Correct , water won't flow until stat opens when plugging outlets , block temps can reach well over 250 degrees , fitting the 'loop' insures water gets circulated round block & heads when stat is closed , this is the reason for some of these cracked blocks. 
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Re: what do you use to block off heater hose fitting on w.p
[Re: NachoRT74]
#933952
02/22/11 10:50 AM
02/22/11 10:50 AM
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Joined: May 2003
Posts: 15,487
Florida
scratchnfotraction
I Live Here
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I Live Here
Joined: May 2003
Posts: 15,487
Florida
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on a sb you can block the intake nipple and wp outlet nipple for the heater core with no ill effects the bigger by-pass hose from wp to intake flows water while the t-stat is closed,so no cold water hitting hot spots,it warms up evenly it also helps keep the wp from cavitating while the stat is closed some do block it,and running with no stat,it would be fine to block both 
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