Heater hose fitting sizes?

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Aug 30, 2006 | 10:05 PM

7t2vette

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Heater hose fitting sizes?

Are the heater hose fittings in the intake and water pump on a small block both 1/2" NPT, I can't remember. TIA

Aug 31, 2006 | 08:26 AM

7t2vette

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anyone?

Aug 31, 2006 | 09:32 AM

mirrorfinishman

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Not sure. I know that one hose is 5/8" while the other hose is 3/4". But then, you probably already know that.

Aug 31, 2006 | 12:49 PM

Xakk

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From: Tulsa OK

I'm pretty sure the 3/4" hose comes off of the waterpump and the 5/8 returns to the intake.

Aug 31, 2006 | 01:39 PM

3rd_Vette

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From: Oregon

Quote:

Originally Posted by Xakk

I'm pretty sure the 3/4" hose comes off of the waterpump and the 5/8 returns to the intake.

Aug 31, 2006 | 04:57 PM

7t2vette

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Guys, I know the hose sizes, what I am looking for is the THREAD size of the fittings, as in 1/2 NPT, which is what I believe they are, but I can't remember for sure.

Aug 31, 2006 | 08:06 PM

lebvette

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I'm with you.....I know they're bigger than 3/8 and I wouldn't think that they're as big as 3/4......so my money is on 1/2.
Larry

Sep 1, 2006 | 08:08 AM

mirrorfinishman

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From: New Jersey

Quote:

Originally Posted by 7t2vette

Guys, I know the hose sizes, what I am looking for is the THREAD size of the fittings, as in 1/2 NPT, which is what I believe they are, but I can't remember for sure.

Your best bet is to remove the fittings and take them down to your local NAPA store. They will have the ability to identify the thread and gage the size.