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Join Date: Apr 2002
Location: Florida
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Question SSI on 79SC Flange Size

I have a 79SC, want to install SSI headers. How do I know if I need thick or thin flange headers?

Old 06-30-2005, 05:56 PM
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You can look under your engine and see how thick your current flanges are. The different flanges only require different studs, but of course those are a hassle considering you can just get what thickness is on your car now and not have to change them. The thin flange are about 1/4" thick, the thick flange about 3/4"
Old 06-30-2005, 06:07 PM
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Thin. I have a pair for sale in the parts section right now that came off my '79.
Old 06-30-2005, 06:22 PM
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they should be thin. do a search for "thick thin flange", there was a very good thread started by island911 with photos.

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Old 06-30-2005, 07:09 PM
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