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Old 10-28-2010, 10:24 PM
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whats the best way to block off the stock ls1 water pump heater hose ports
Old 10-28-2010, 10:39 PM
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The 'best' way or the easy way? As far as the best way, twist & pull the hose fittings out of the pump, tap the holes NPT and screw in a nice set of plugs. For the easy, redneck way, simply loop a section of hose between the 2 fittings, attach with ugly hose clamps. Just my opinion.

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Old 10-28-2010, 11:08 PM
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Thanks for the reply I will be doing the taping method
Old 10-28-2010, 11:58 PM
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Rhino, something that my Dad taught me when I was a young man, "it only takes a little more effort to do it right the first time". I've lived by that philosophy for over 45 years and it's served me well.

BTW, a good pair of Vise-Grips will get the hose fittings out of the water pump.

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Old 10-29-2010, 02:09 AM
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just dont over tighten the plugs it can crack the pump, ask me how i know lol
Old 10-30-2010, 12:56 PM
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according to Steve Buerl (SP) of Westech performance(SP) lol, its better to run a " U "
Old 10-30-2010, 01:13 PM
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GM or Gates makes the "U" it looks factory!! you want flow,
Old 10-30-2010, 04:32 PM
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Link to the U?

Edit- Here it is
https://ls1tech.com/forums/conversio...hose-loop.html

I am going to tap it and plug it.

Last edited by ablakez28; 10-30-2010 at 04:37 PM.
Old 10-30-2010, 05:45 PM
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Dayco # 87629 or Kelly-Springfield #S-4354. Not sure what the cross reference numbers are for Gates etc. Around $8-9 at most parts stores

Better option than the GM number people are throwing around
Old 10-31-2010, 10:16 AM
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Thanks for the part number's I will now be doing this lol I looked in my tap kit the other day and My npt taps don't go up that big so by the time I bought new taps this route will be way more budget friendly



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