vent hole on exhaust manifold?

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02-14-2012, 05:55 AM

Toastintx

1st Gear Member

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Join Date: Feb 2007

Location: Texas

Posts: 97

vent hole on exhaust manifold?

just bought a repo 289 stock exhaust manifold (log) theres a vent hole at the #4 exhaust. is that supposed to be there? or do i need to tap and plug it or is it supposed to be hooked up somewhere? help

02-14-2012, 07:35 AM

jmk3

3rd Gear Member

Join Date: Sep 2006

Location: South Jersey

Posts: 628

I would guess its for a choke heat tube.

02-14-2012, 09:11 AM

wonso79

2nd Gear Member

Join Date: Mar 2008

Location: Wisconsin

Posts: 334

My guess would also be for the choke heat tube as I have one on my manifold on my inline 6 and that's what it's used for.

02-14-2012, 08:51 PM

2+2GT

6th Gear Member

Join Date: May 2009

Location: PA

Posts: 5,232

Quote:

heat tube

Exactly.

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