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What's the max overbore on STD gpz1100 barrels?

Posted: Fri Jan 13, 2012 3:08 pm
Author: garyd
Years ago i bored mine to 1170 so I know thta's safe.

But can they go to 1200?

Posted: Fri Jan 13, 2012 6:17 pm
Author: big green bus
Anything over 1170 (wiseco) you need liners 1260cc there might be other kits with JE or COSWORTH kits that are ok I think there is a 1198 kit, but not sure who makes them

Posted: Fri Jan 13, 2012 9:10 pm
Author: london calling
Pretty sure that 75mm (1170cc) is the limit for standard liners.
Also if you go 76mm+ then you'll need to get the crankcase machined.

Posted: Fri Jan 13, 2012 9:51 pm
Author: garyd
Thans guys.

One for the future but as I've already done a 1170, then I might as well go the whoe hog & make it a 1260.

Gary

Posted: Fri Jan 13, 2012 9:54 pm
Author: Pigford
garyd wrote:Thans guys.

One for the future but as I've already done a 1170, then I might as well go the whoe hog & make it a 1260.

Gary


The 1260 liners are known to be a bit "fragile" - better off spending on a full Big Bore Block :??

Posted: Sat Jan 14, 2012 11:41 am
Author: garyd
Can you still get a big block...or is it a case of trawling for a 2nd hand one?

Posted: Sat Jan 14, 2012 4:22 pm
Author: neilbarrett
google ape performance parts and look for the kawasaki zone

Posted: Sat Jan 14, 2012 5:03 pm
Author: Pigford
Try PITSTOP PERFORMANCE - good ol' Joe Hooper :wink: