Heater box swap - Team Camaro Tech
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post #1 of 5 (permalink) Old Feb 3rd, 01, 09:17 PM
69 Man
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I recently switched my 69 over to a big block from small block. I am getting ready to change the heater box and core. Is there anyone out there that has done this before, and what problems am I going to run into? I think I probably will have to end up taking off the fender to do this. Anyone have any suggestions?
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post #2 of 5 (permalink) Old Feb 4th, 01, 02:20 PM
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Dan
 
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Don't take off the fender! Drop the inner fender. You don't need to scratch the paint deal with shims or align the hood. The worst that could happen is you will have to grind off a few bolt heads if they are real rusty.

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post #3 of 5 (permalink) Old Feb 4th, 01, 06:37 PM
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I'm wondering. Is it necessary to switch to a big block heater when changing from SB to BB? Or is it only to make things correct? The heater will still work either way won't it? Mine was converted by the previous owner; the heater core wasn't changed. It works OK. Is this a problem?
Thanks
Joe

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post #4 of 5 (permalink) Old Feb 6th, 01, 06:29 AM
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Joe G: The heater core is in the wrong place on mine. I had to cut the tubes for the head to clear on mine. Also I am running 2 in priamary tube Hooker Headers. There is absolutely no clearance for the heater hoses. Also on yours, did you use the big block frame mounts, to correctly position the engine. Small block frame mounts work, but give you a different positioning of the engine.
post #5 of 5 (permalink) Old Feb 6th, 01, 08:14 PM
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Joe
 
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I bought the car this way. I've measured the mounts and the passenger side is about 1/2 inch shorter than the driver side so I think they are correct bb mounts. My heater hose are by the fender; I assume this means it is a sb heater? No clearance problems anywhere!
Joe

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[This message has been edited by Joe G (edited 02-06-2001).]
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