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?

 

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.

 

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)

 

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

 

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.