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extra port in head?
https://slantsix.org/forum/viewtopic.php?t=46639
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Author:  chucksrodgarage [ Thu Oct 13, 2011 4:24 pm ]
Post subject:  extra port in head?

i am replacing the 66 slant in my 41 plymouth with a later (78 ) engine that i had built for the car. getting ready to drop it in and am finding a extra unneeded hole (port) in the head? it it at the very rear just behind #6 exhaust port. it doesn't appear to go into the water jacket, as i blew air into it, and it seems to be dead end. just wondering where this port goes to in the newer head. it goes in quite a ways.
thanks in advance

Author:  chucksrodgarage [ Thu Oct 13, 2011 4:26 pm ]
Post subject: 

change in notification

Author:  Reed [ Thu Oct 13, 2011 4:34 pm ]
Post subject: 

It is for the air injection. You can just put a plate over it with some RTV sealant and be done with it.

Author:  chucksrodgarage [ Thu Oct 13, 2011 4:49 pm ]
Post subject: 

thanks for the reply.
great, was thinking that it had something to do with emissions, but didn't know exactly what.
thanks again

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