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8v top end swap question

  • Thread starter Thread starter whiterabbitt
  • Start date Start date
W

whiterabbitt

Guest
will the pistons, jug, and head off an 8v 850 shafty drop into/onto my 77' 750 case?

I am talking to elevatorman71 about his parts and just want to make sure they will fit befor I buy anything.
 
If I remember correctly, the jugs from a '79 will bolt on with no work, but '80 and newer will need some machining.

Not sure just where or how much, and I just might be wrong.

Also, if you use '80 and up head, you will also need the CV carbs that go with it.

.
 
Last edited:
Check out this thread: http://www.thegsresources.com/_forum...=163827&page=2

My 850 cylinders (of unknown year) hit the inside of the cases with about 10mm to go. It was pretty close; I only had to remove a few mls to make them fit. I stuffed rags in the cases and smeared a bit of grease around to try and catch the aluminium chips. Some smaller pieces got through and showed up in the filter which I changed early (50kms) for this reason.

If I did it again I probably would pulll the sump cover and flush it through with kero.

The photo below shows what I removed. I had to do this on both sides of the outside holes of the cases.
Attached Thumbnails

It's nor a big deal compared to the time and effort of the overall project.
 
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