Moving to big block heater core and cover 68 - Team Camaro Tech
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post #1 of 7 (permalink) Old Apr 7th, 10, 07:49 PM Thread Starter
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Patrick
 
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Moving to big block heater core and cover 68

OK guys, on my 3 rd heater coor from a 69 big block no ac. Others were too thick! I have the Bigblock cover with holes in the center too. Cover says Big block 67-69.

Tubes don't even remotely line up with the holes?

Help a newbie....

Original SBC heater core/cpver with no AC 68.

1968 Convertible L92 VVT project, Hotchkiss lowering front & rear.

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post #2 of 7 (permalink) Old Apr 13th, 10, 03:43 PM Thread Starter
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Patrick
 
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Re: Moving to big block heater core and cover 68

Bump.

What is the correct big block heater core for a 68 no ac?
Tried 68 replacement = too thick
Tried 69 thinner = tubes dont line up.

Thanks!

1968 Convertible L92 VVT project, Hotchkiss lowering front & rear.

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post #3 of 7 (permalink) Old Apr 18th, 10, 09:58 PM
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Re: Moving to big block heater core and cover 68

My '68 BB core was the same thickness as a '67 SB I have lying around... It's 2.5" thick. What's yours?

It looks like you have read some of the threads here. Some suggest using the '69 core. But I think those threads are pretty old. I just finally found the actual thickness of a '68 BB core and ordered a '68 BB core. It was/they are the right thickness.

I am starting w/ a complete '67 SB heater as a base for my '68 BB. My car didn't have any heater stuff, except controls and defrost duct (luckily!), when I bought it. I bought an aftermarket/repro BB outer cover. I did a trial fitting of the inner box, core, tube seal, and outer cover out of the car. They were pretty close. I have to have the core tested and more solder is suggested, too. So, I may have them adjust the tubes when I have that done...

Now, don't me started on how badly the BB core clips on the aftermarket fit!!! :-P


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post #4 of 7 (permalink) Old Apr 24th, 10, 06:42 AM Thread Starter
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Patrick
 
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Re: Moving to big block heater core and cover 68

Thanks. I am just amazed how far off the BB core pipes are off center from the BB holes!

I have read only the original units really fit? Is that true?

1968 Convertible L92 VVT project, Hotchkiss lowering front & rear.

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post #5 of 7 (permalink) Old Apr 24th, 10, 08:06 PM
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Re: Moving to big block heater core and cover 68

I picked up an original '67 heater set up. I am using the inner case w/ aftermarket/repro BB outer case and '68 BB heater core in my '68. I test fit it all out of the car. The pipes were a bit off, though did fit. But again, I figured I'd have them moved when I bring it to the radiator shop for testing. If I wanted to adjust them...


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post #6 of 7 (permalink) Old Apr 25th, 10, 03:33 AM
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Re: Moving to big block heater core and cover 68

I used the small block cover and cut my own holes. Then added the cover for the 2 tubes. Probably the best way to go.

Mike
69 Camaro Prostreet - purple w/ghost flames , 502 w/ 871 blower


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post #7 of 7 (permalink) Old Apr 25th, 10, 05:03 AM
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Re: Moving to big block heater core and cover 68

my 68 6 cylinder (no laughing) had the original heater core. it took a heater core for a 69 to work. the 68 core from two suppliers were 1/2" too thick.
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