The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1967 - 1972 Chevrolet & GMC Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 09-29-2013, 11:18 PM   #1
Steve Cole
Registered User
 
Join Date: May 2012
Location: Faith,NC
Posts: 1,623
Forgive my ignorance.... But,

My heater core has a 5/8" fitting and a 3/4" fitting. Which one goes on top? I'm thinking my heater core was installed upside down. Thanks.
Posted via Mobile Device
Steve Cole is offline   Reply With Quote
Old 09-29-2013, 11:29 PM   #2
Zable49
Registered User
 
Zable49's Avatar
 
Join Date: Jun 2007
Location: Lacey, Wa
Posts: 181
Re: Forgive my ignorance.... But,

I have always installed my heatercores with the 3/4 on top. That way my heater lines dont cross and I can tie them to the fenderwell with T-Clamps. Nice clean look.

However, I dont think there is a wrong way to install them. Either way will work.
__________________
1970 C20 Camper Special
SBC350 / TH350
'84 C20 Front Disc Brakes/Control Arms
Zable49 is offline   Reply With Quote
Old 09-30-2013, 01:21 AM   #3
Stocker
20' Daredevil (Ret)
 
Stocker's Avatar
 
Join Date: May 2003
Location: Jefferson State
Posts: 13,546
Re: Forgive my ignorance.... But,

Should be hot water into core via smaller hose (5/8"), and a 3/4" upper return hose.

If your truck has different size hoses, just be sure the hot water goes into the core at the lower hose nipple.
__________________
- Mike -

1972 K20 LWB 350/350/205

RIP El Jay
Stocker is offline   Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 05:14 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com