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09-27-2018, 08:49 PM
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#1 |
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Registered User
Join Date: Aug 2018
Location: Chetwynd, BC
Posts: 58
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1966 k10 heater core
My new to me 66 short had a bad rad cap, replaced it and very shortly there after started smelling a bit of coolant. Any who, heater core is shot and thanks to the help on this forum for directions on heat box removal.
For those into this, there is a couple of sizes of cores, 7 inch and 9 1/2 inches long. Check the specs before you order. 2nd one on order now.
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Brent W 66 short step 4 x 4 |
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09-29-2018, 10:01 PM
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#2 |
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Registered User
Join Date: Aug 2018
Location: Chetwynd, BC
Posts: 58
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Re: 1966 k10 heater core
New one arrived today, install required grinding out the slots on the 3/4 inch outlet for clearance. The spacing between the 2 pipes was not quite factory The heat is on.
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Brent W 66 short step 4 x 4 |
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10-01-2018, 02:50 PM
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#3 |
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Registered User
Join Date: May 2006
Location: Kansas
Posts: 1
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Re: 1966 k10 heater core
My K20 is in need of a new heater core as well. Is it possible to determine which size core I need without removing the heater box 'lid'?
Where did you go for the new heater core? |
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10-02-2018, 12:22 AM
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#4 | |
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60-66 Nut
  Join Date: Mar 2007
Location: Coeur d'Alene, Idaho
Posts: 23,252
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Re: 1966 k10 heater core
Typically the Economy heater has the smaller core and the Deluxe heater has the larger core.
Quote:
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10-02-2018, 01:15 AM
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#5 |
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Registered User
Join Date: Aug 2018
Location: Chetwynd, BC
Posts: 58
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Re: 1966 k10 heater core
The above is correct, but you can pull the top off the unit easy enough and see the coil, can't remove it until the box is removed, it comes out from below. But you will see enough to measure the length.
The deluxe (9 inch) is Spectra Premium 94691, local shop ordered it, I think Spectra is a fairly common brand.
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Brent W 66 short step 4 x 4 |
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10-02-2018, 10:04 AM
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#6 |
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Registered User
Join Date: Sep 2010
Location: Winchester Oregon, formerly Vancouver BC
Posts: 2,949
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Re: 1966 k10 heater core
I took my original heater core in and had the tanks unsweated on both the repop and old ones and then swapped them. I couldn't take the fit and it would have irritated me.
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10-03-2018, 12:29 AM
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#7 |
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Registered User
Join Date: Aug 2018
Location: Chetwynd, BC
Posts: 58
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Re: 1966 k10 heater core
Looks good.
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Brent W 66 short step 4 x 4 |
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