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Zlock Racing Products
Big Bores

Big Bores Include:

  • Pistons
  • Rings
  • Wrist Pins
  • Clips
  • Gaskets
  • Instructions
  • Machining Included
Big Bore Kits
Add a brief word about the big bore kits.
Zlock Racing big bore kits are designed with an innovative new head lock design created by Zlock Racing called "Lid-Lock".  This new design is a registered trademark of Zlock Racing.  We have spend many hours designing this new system to ensure a high quality, leak proof system.
  ZX9-R
Year CC / Size Comp Ratio Horse Power Price
2000-03 985cc / 78.5mm 13:1 to 13.9:1 150 plus $1,400
2000-03 950cc / 77mm 12.9:1 to 13.5:1 145 plus $1,200
1998-99 950cc / 77mm 12.3:1 to 12.9:1 145 plus $1,200
1994-97 950cc / 75mm 12.8:1 140 plus $1,200
  ZX7-R
Year CC / Size Comp Ratio Horse Power Price
1996-01 790cc / 75mm N/A N/A $1200
1996-01 836cc N/A N/A $3000
Engine Conversion Kit - Basic conversion includes long stroke crankshaft, big bore piston & sleeve kit, gaskets, bearings and labor.  Additional parts - head and crank work extra.
1991-95 836cc / 75mm 12.5:1 N/A $1,200
  ZX6-R
Year CC / Size Comp Ratio Horse Power Price
2000-02 636cc / 68mm N/A 110 plus $1200
  SV 650
Year CC / Size Comp Ratio Horse Power Price
1999-02 744cc / 87mm 12.5:1 85+ $990
  More Information  
Zlock Racing big bores are done on the customers cylinder.  Exchange cores are sometimes available upon request.  Please call for availability and core charge.
 
Suspension Links
Zlock Racing suspension links are made with aircraft aluminum and designed to improve control and increases traction.  The suspension links are hand made and sold without bearings.
We install bearing for an additional $50.00. 
Make Year Price
* ZX-9 1998-2003 $450
  ZX-7 1991-2001 $450
* Requires suspension arms.
Zlock Racing Links
 
Suspension Arms
Zlock Racing suspension arms are made with aircraft aluminum and designed to change the swing arm angle.  Call for information on suspension arm lengths for your machine.
Make Year Price
ZX-9 1998-2003 $50 Pr
ZX-7 1991-2001 $50 Pr
Custom lengths available for all makes and models.  Call for information on available lengths.
Zlock Racing Suspension Arms
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