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J5181 CAM4180 cylinder head info required
https://www.ausmini.com/forums/viewtopic.php?f=2&t=97839
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Author:  astimini [ Fri Oct 12, 2018 1:19 am ]
Post subject:  J5181 CAM4180 cylinder head info required

I am looking for any info on the j series cylinder heads. I believe that they are slightly modified cam4180 heads from the later 998's.
Thanks

Author:  minivan60 [ Fri Oct 12, 2018 10:48 pm ]
Post subject:  Re: J5181 CAM4180 cylinder head info required

astimini wrote:
I am looking for any info on the j series cylinder heads. I believe that they are slightly modified cam4180 heads from the later 998's.
Thanks








This is a "J" cast head.There is a less metal around the valve guide boss on intake.Otherwise it is just like any other a+ 998 head with small valves and tiny ports.(Both valves are oversize on this head)

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