1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

6 port 12a

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Old 11-22-15, 11:19 PM
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6 port 12a

Does anybody know where to find a intake gasket for a 6 port 12a?
Also is there any info on why there would be one in the USA?
Old 11-23-15, 12:08 AM
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I don't know. I was going to make a gasket for mine. Maybe j9fd3s knows something. It is possibly related to part number N225 or N226.
Old 11-23-15, 09:26 AM
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buy the GSL-SE gasket, and cut 10mm out of each side.

the part number for the 6 port 12A gasket is N225-13-111, but i've never seen one. the GSL-SE is N304-13-111 probably an A or B by now (N304-13-111A, or N304-13-111B)
Old 11-23-15, 12:14 PM
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Thanks j9 I'll order a se gasket.
One more question, are the 5th and 6th port sleeves the same as a gslse?
If so I should be able to use Atkins improved sleeves correct?
Old 11-23-15, 02:08 PM
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Originally Posted by project7s
Thanks j9 I'll order a se gasket.
One more question, are the 5th and 6th port sleeves the same as a gslse?
If so I should be able to use Atkins improved sleeves correct?
yes and yes
Old 11-23-15, 05:14 PM
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My plan is to use a Y intermediate plate and fill the casting void in the intake manifold with quicksteel. I'm doing this because the original intermediate iron has too much step wear from always running too rich due to the water temp-controlled choke having malfunctioned and stayed on all the time. Too much fuel washed the oil off the irons. I already swapped out the end plates with some GSL-SE or rather RE-SI to be specific.

The new plan for the intake gasket is to get a GSL-SE gasket and cut it for the end plates and a use a regular 12A gasket for the intermediate and both rotor housings. Seems like it'll work. Less work than cutting my own as well.
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