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Old 03-17-2016, 09:14 PM   #1
Isaiah92260
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What is this hole for on my manifold?

What is the purpose of this threaded hole on my exhaust manifold?
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Old 03-17-2016, 11:27 PM   #2
ol_skool_chevy
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Re: What is this hole for on my manifold?

maybe a Heat raiser...to heat your intake and carb when the motor is cold
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Old 03-18-2016, 12:53 AM   #3
TJ's Chevy
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Re: What is this hole for on my manifold?

You mind getting a picture a little farther away. lol I can't tell where on the manifold that hole is. haha
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Old 03-18-2016, 11:13 AM   #4
chevy_mike
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Re: What is this hole for on my manifold?

I believe that was a mounting point for a factory type throttle linkage bracket.
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