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11-11-2014, 03:28 PM
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#1 |
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Registered User
 
Join Date: Jun 2014
Location: Houston, Texas
Posts: 722
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heater hose fitting on intake - size?
I need a new heater hose fitting for my new intake that's going to be on my new crate engine....I don't have the engine yet so I can't check it for myself....
the intake is this : http://www.summitracing.com/parts/nal-10185063 Would it be 3/4 or 5/8 ? summit says 1/2 but that's not an option (unless they are talking about the diameter of the actual hole not the part the hose connects onto)
__________________
1972 Chevrolet C20 Cheyenne Custom Camper LWB - 350 / 330 HP GM Crate - TH350 / Mild Shift Kit - Dark Blue / Medium Blue - Paint Code 559 |
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11-11-2014, 03:39 PM
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#2 |
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Registered User
Join Date: Feb 2014
Location: West Iowa
Posts: 1,107
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Re: heater hose fitting on intake - size?
They are describing the thread size in the manifold for the heater hose (1/2 NPT-national pipe thread). On the summit site look at the PSST fittings- pricey but very nice. Bruce
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11-11-2014, 04:27 PM
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#3 |
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Registered User
Join Date: Jun 2010
Location: Upland Ca
Posts: 4,139
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Re: heater hose fitting on intake - size?
Usually the intake to inlet (bottom) of heater core is 5/8 ID, return form the core to radiator or water pump is 3/4 ID.
__________________
1972 C10 SWB, Air, PS, PB, 350/350THM. Second owner. 1965 Corvette roadster, 44K miles, 327/365 SHP, 4 speed, side exhaust, knockoffs, teak, second owner (bought in 1970), Have ALL numbers matching components. My frame off restoration thread: http://67-72chevytrucks.com/vboard/s...d.php?t=556703 |
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11-11-2014, 04:36 PM
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#4 |
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Registered User
Join Date: Jun 2014
Location: Houston, Texas
Posts: 722
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Re: heater hose fitting on intake - size?
That's what I thought, thanks guys!!
__________________
1972 Chevrolet C20 Cheyenne Custom Camper LWB - 350 / 330 HP GM Crate - TH350 / Mild Shift Kit - Dark Blue / Medium Blue - Paint Code 559 |
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