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Discussion Starter #1
I know that the old ZR500 ZR600 used the same engine case if one desired to use a BM or D&D big bore kit. Is the F5 and F7 case the same for the same purposes. I want to stick with a carbed sled and bigbore later if I get a new sled.
 

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Hey riding bud.  They are a different engine.  Both are new.  The F7 has a different crankcase.

The F5 mod kits on Black Magic's website are in the $3,000 to $4,000 range.  It's a lot more affordable to just get the F7 unless you want a sleeper.

Greg
 

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Discussion Starter #3
Yeah, I just found that out with a phone call. The F7, eventhough I like carbs better, seems to be the one. With a magic twin/clutch setup, it's not too far behind an F5 with a stroker trail kit and wayyyyyyy less money. I guess efi might win out. We will see.

 

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Black Magic has an F7 carb conversion kit.

If you want a sleeper, the 715cc kit looks like it would be awesome.152hp and 94ftlbs.!!!!
 
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