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Advantages/Disadvantages engine swap on a GS1000G

JTGS850GL

JTGS850GL

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Now that I'm in need of a new spare engine for my 1980 GS1000G I'm pondering my choices available. I'm assuming that a GS1100G engine would be a direct bolt in replacement for my 1000G. Please correct me if this is an incorrect assumption. If this is true, then are there any disadvantages with going with the 1100G engine in place of the 1000G? Historical originality is not a consideration for me. It's more of a performance and longevity thing.
 
OK, so I just picked up a "Good running" 1983 GS1100G engine with "28K original miles". Now trying to determine what differences there are between the new 1100 engine and the 1980 GS1000G engine I currently have. I know the head and base gaskets are the same between the two, but the valve covers are different. I'm also assuming that the clutch and stator covers are the same and use the same gaskets. What differences are there on the stator side? Clutch side? Some parts are different when I look at the fiche. Need to research a little on the carbs too. I know they both used the BS43SS carbs but had slight differences in jetting.

Planning to do a top end rebuild on the new engine just to freshen it up and asses it's internals.

Rapidly acquiring a lot of parts to liquidate. Stay tuned for a "Parts For Sale" post to recoup some of the costs.

Sorry for the rant, but a little excited at the prospect of a fresh GS1100G v/s a warn out 1000G as my doner engine for the pretty GS1000GT.:D:onthego: Current engine runs fine but is a bit buzzier then I would like. Worried that she'll give up the ghost and hate to think of that without a spare engine in the waiting.:nightmare:
 
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