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07-26-2018, 09:48 AM | #1 |
Registered User
Join Date: Jun 2014
Location: Perth Australia
Posts: 32
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Inlet manifold gaskets
Hi, I am rebuilding my 350 in my 87, when I removed the inlet manifold the 2 rear coolants ports were blocked off.
Have not seen this before in Australia. Is there a reason for this? Can I put in gaskets with the 2 rear ports open or is it best to get gaskets with them blocked off ?? Andy
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Andy 1979 Corvette 1987 Stepside 2012 Holden Calias |
07-26-2018, 11:49 AM | #2 |
Senior Member
Join Date: Jan 2011
Location: Hayes Va
Posts: 4,569
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Re: Inlet manifold gaskets
The ports in the rear dont go anywhere. The heads are cast with ports at both ends so they can be used on either side. They just get covered over by the intake.
Jimmy
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60 to 66 Chevy and GMC window decals http://67-72chevytrucks.com/vboard/s...d.php?t=661131 Good friends, good food and a hotrod what else do you need? 1966 BBW long fleet Daily driver 1965 BBW short fleet Sold and going to a good home 1965 Suburban 2003 3500 Duramax 2005 Ultra Classic |
07-26-2018, 11:14 PM | #3 |
60-66 Nut
Join Date: Mar 2007
Location: Coeur d'Alene, Idaho
Posts: 23,246
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Re: Inlet manifold gaskets
As PGSigns said, the intake manifold typically does not have a coolant crossover passage at the rear of a small block. Starting in about 1988, the trucks did have a port on the passenger side for the heater hose located at the rear port. All of the intake gaskets I have seen have open ports at both ends. This is so they can be used on either side, plus the intake manifold blocks off the coolant port.
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