Author Topic: Big Bore 442 pistons kit 59mm for sale!!!!  (Read 56162 times)

Offline gsxr400 racer

  • I find things for a small fee....
  • Site Supporters
  • Board Homesteader!
  • ***
  • Posts: 3344
    • For all your disc golf needs...maybe i can race again someday.lol
Re: Big Bore 442 pistons kit 59mm for sale!!!!
« Reply #90 on: July 11, 2008, 07:35:35 PM »
No sorry still $1000.00 shipped
1988 gsxr 400 sp (sprint bike)
*  SELLER OF THE 442CC BIG BORE PISTON KIT FOR THE BANDIT 400,GSXR400, GK73 and 76.* And carb kits(orings)too. Email me from here.
has been a wera expert #610 lol

Offline Uncle.Jay

  • TURBO TYPER!
  • **
  • Posts: 24
Re: Big Bore 442 pistons kit 59mm for sale!!!!
« Reply #91 on: October 14, 2008, 04:26:52 PM »

hi,

whats the prize incl shipping to europe?

Jens

Offline gsxr400 racer

  • I find things for a small fee....
  • Site Supporters
  • Board Homesteader!
  • ***
  • Posts: 3344
    • For all your disc golf needs...maybe i can race again someday.lol
Re: Big Bore 442 pistons kit 59mm for sale!!!!
« Reply #92 on: October 14, 2008, 04:54:39 PM »
1988 gsxr 400 sp (sprint bike)
*  SELLER OF THE 442CC BIG BORE PISTON KIT FOR THE BANDIT 400,GSXR400, GK73 and 76.* And carb kits(orings)too. Email me from here.
has been a wera expert #610 lol

Offline Uncle.Jay

  • TURBO TYPER!
  • **
  • Posts: 24
Re: Big Bore 442 pistons kit 59mm for sale!!!!
« Reply #93 on: October 14, 2008, 05:05:45 PM »

thank you

Offline gsxr400 racer

  • I find things for a small fee....
  • Site Supporters
  • Board Homesteader!
  • ***
  • Posts: 3344
    • For all your disc golf needs...maybe i can race again someday.lol
Re: Big Bore 442 pistons kit 59mm for sale!!!!
« Reply #94 on: October 14, 2008, 06:33:55 PM »
like 500 pounds
1988 gsxr 400 sp (sprint bike)
*  SELLER OF THE 442CC BIG BORE PISTON KIT FOR THE BANDIT 400,GSXR400, GK73 and 76.* And carb kits(orings)too. Email me from here.
has been a wera expert #610 lol

Offline gsxr400 racer

  • I find things for a small fee....
  • Site Supporters
  • Board Homesteader!
  • ***
  • Posts: 3344
    • For all your disc golf needs...maybe i can race again someday.lol
Re: Big Bore 442 pistons kit 59mm for sale!!!!
« Reply #95 on: January 16, 2012, 05:47:45 PM »
Couple more days and im blowing the lid off the 442cc and 465cc kits :yikes: id prefure anyone that knows a machinest to be able to get this little bike to keep up with the jones's :thanks: to all that purchased a kit
1988 gsxr 400 sp (sprint bike)
*  SELLER OF THE 442CC BIG BORE PISTON KIT FOR THE BANDIT 400,GSXR400, GK73 and 76.* And carb kits(orings)too. Email me from here.
has been a wera expert #610 lol

Offline gsxr400 racer

  • I find things for a small fee....
  • Site Supporters
  • Board Homesteader!
  • ***
  • Posts: 3344
    • For all your disc golf needs...maybe i can race again someday.lol
Re: Big Bore 442 pistons kit 59mm for sale!!!!
« Reply #96 on: February 13, 2012, 01:38:09 PM »
FZR 600 pistons, pins, clips, rings for 442cc on the bandit and gsxr 400's
fzr 600 sleeves shortened and weisco fzr 650 somethings kit make a 465 cc bandit 400 or whatever combo you want once you install the sleeves but 442 is as big as you can go with out having to do the sleeve ordeal. enjoy and thanks everyone. :motorsmile: :beers:
1988 gsxr 400 sp (sprint bike)
*  SELLER OF THE 442CC BIG BORE PISTON KIT FOR THE BANDIT 400,GSXR400, GK73 and 76.* And carb kits(orings)too. Email me from here.
has been a wera expert #610 lol

Offline gsxr400 racer

  • I find things for a small fee....
  • Site Supporters
  • Board Homesteader!
  • ***
  • Posts: 3344
    • For all your disc golf needs...maybe i can race again someday.lol
Re: Big Bore 442 pistons kit 59mm for sale!!!!
« Reply #97 on: February 14, 2012, 01:16:12 AM »
I forgot you have to mill the valve pockets like 20 thousandths as well
1988 gsxr 400 sp (sprint bike)
*  SELLER OF THE 442CC BIG BORE PISTON KIT FOR THE BANDIT 400,GSXR400, GK73 and 76.* And carb kits(orings)too. Email me from here.
has been a wera expert #610 lol

Offline orac

  • New user!
  • *
  • Posts: 2
Re: Big Bore 442 pistons kit 59mm for sale!!!!
« Reply #98 on: May 05, 2012, 03:46:55 PM »
thanks for this info, i can lay my hands on some FZR pistons for around £30.

alos i take it when you say valve pockets you mean the recess in the top of the pistons that are on an anlge.

what does this do to the compression ratio if anything?

Offline Chris H

  • Board Homesteader!
  • ***
  • Posts: 559
Re: Big Bore 442 pistons kit 59mm for sale!!!!
« Reply #99 on: May 07, 2012, 01:16:59 PM »
The pockets are machined to stop the valves hitting the piston and is not really relevant to the compression ratio.
The fact you have over bored increases compression.
You should still measure the motor after machining tho, if one pocket is on the high side and its valve slightly longer you could run into problems.
Remember to open the head gasket out to fit the new bore!

Offline orac

  • New user!
  • *
  • Posts: 2
Re: Big Bore 442 pistons kit 59mm for sale!!!!
« Reply #100 on: May 07, 2012, 01:21:51 PM »
thats what i thought, was gonna measure things up before final assembly anyway. i have a second set of 400 pistons that i can compare things like pin to crown so i can get an idea of what and where i need to make anychnges

Offline bandito93

  • TURBO TYPER!
  • **
  • Posts: 39
Re: Big Bore 442 pistons kit 59mm for sale!!!!
« Reply #101 on: September 21, 2012, 03:25:53 AM »
What about the head and base gaskets, will the factory ones still work with the 59mm pistons? If not where can I find a suitable gasket? My poor Bandit is getting tired and I really would like to do this 442 setup when I rebuild it. Thanks

Offline Chris H

  • Board Homesteader!
  • ***
  • Posts: 559
Re: Big Bore 442 pistons kit 59mm for sale!!!!
« Reply #102 on: September 21, 2012, 11:58:13 AM »
Base gasket is stock but head gasket has to openned out by hand to fit the new bore using a dremil etc.