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What size heater hoses for 58 with Deluxe heat
Hey guys about to install my Delue heat system and wondering what size NPT fittings for my SBC? Is it 5/8" for both hoses?
Thanks, Mark |
Re: What size heater hoses for 58 with Deluxe heat
one hose is 5/8" and the other is 3/4"
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Re: What size heater hoses for 58 with Deluxe heat
Its 5/8" on both hoses on my '56's & '57.
Your heater will determine what size hoses and fittings go on the engine. |
Re: What size heater hoses for 58 with Deluxe heat
Hey TIm thanks thats what someone else told me but both fittings at the heater core are 5/8" What gives?
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Re: What size heater hoses for 58 with Deluxe heat
two sizes of heater hose came much later in the 60's
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Re: What size heater hoses for 58 with Deluxe heat
Quote:
Most all GM anything that I have worked on have the 5/8 hose from the engine to the heater and the 3/4 running from the heater to the water pump or to the radiator in some cases. Back to the original question I think that both fittings are 1/2 npt in the intake and in the water pump. The one in the waterpump could be 3/4 but I don't think it is and I'm at work so I can't check one of mine to find out. |
Re: What size heater hoses for 58 with Deluxe heat
Very interesting responses. My core definitely looks original and its definitely has both connnections as 5/8". I should say the heater box is from a 55. I have a neighbor who has a totally original 58 step with 50K miles. I will double check what he has. Thanks for all the input
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Re: What size heater hoses for 58 with Deluxe heat
my 56 has both sizes of fitting because the engine is from a 69. The pipes coming from the heater core are both 5/8"
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Re: What size heater hoses for 58 with Deluxe heat
5/8 one side -3/4 the other -57 bbw
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