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Kawasaki KX80/85/100 Big Bore Kits/Big Bore Stroker Kits

 

 


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*Please be sure to clean out your crankcases before installing your big bore top end. There may be foreign material still inside from a prior top end failure, which will quickly ruin your new big bore kit. Also check your crankshaft to make sure your lower end bearing is not ready to fail. If you need us to check it for you, then send your entire engine to us when purchasing our big bore kit service.
 90cc Big Bore Kit  Send us your cylinder and head. Includes: Bore Cylinder to 50mm and Re-Plate, Head Modification for 50mm bore, Big Bore Porting, any Power Valve Modification needed, 50mm Forged Piston Kit, Top End Gasket Kit, and Return Shipping.
Price $495.00   For 1988-00 KX80 

92cc Big Bore Kit  Send us your cylinder, power valve, and head. Includes: Bore Cylinder to 50.5mm and Re-Plate, Head Modification for 50.5mm bore, Big Bore Porting, any Power Valve Modification needed, 50.5mm Forged Piston Kit, Top End Gasket Kit, and Return Shipping.
Price $495.00   For 1988-00 KX80/2001-11 KX85 

100cc Big Bore Kit  Send us your cylinder, power valve, and head. Includes: Bore Cylinder to 52.5mm and Re-Plate, Head Modification for 52.5mm bore, Big Bore Porting, any Power Valve Modification needed, 52.5mm Forged Piston Kit, Top End Gasket Kit, and Return Shipping.
Price $495.00   For
1988-00 KX80/2001-11 KX85 

107cc Big Bore Kit  Send us your cylinder, power valve, and head. Includes: Bore Cylinder to 54.5mm and Re-Plate, Head Modification for 54.5mm bore, Big Bore Porting, any Power Valve Modification needed, 54.5mm Forged Piston Kit, Top End Gasket Kit, and Return Shipping.
Price $495.00   For 2001-11 KX85/1995-11 KX100 


96cc Big Bore-Stroker Kit  (50.5mm Bore X 47.8mm Stroke). Send your complete engine with kickstarter and shifter to us. Includes:  Calculate Deck Height, Port Heights, Compression Ratio, Bore Cylinder, and Re-Plate, Head Modification for Big Bore/Longer Stroke, any Power Valve Modification needed, Big Bore Porting, 50.5mm Forged Piston Kit, 2mm Hot Rods Stroker Crank, and Rebuild, Complete Gasket Kit, Engine Seals, Crank Bearings, Crankcase Modification for Longer Stroke, Complete Engine Rebuild Labor, Return Shipping.
Price $1395.00   For 1991-00 KX80/2001-11 KX85 

 103cc Big Bore-Stroker Kit  (52.5mm Bore X 47.8mm Stroke). Send your complete engine with kickstarter and shifter to us. Includes:  Calculate Deck Height, Port Heights, Compression Ratio, Bore Cylinder, and Re-Plate, Head Modification for Big Bore/Longer Stroke, any Power Valve Modification needed, Big Bore Porting, 52.5mm Forged Piston Kit, 2mm Hot Rods Stroker Crank, and Rebuild, Complete Gasket Kit, Engine Seals, Crank Bearings, Crankcase Modification for Longer Stroke, Complete Engine Rebuild Labor, Return Shipping.
Price $1395.00   For 1991-00 KX80/2001-11 KX85  

112cc Big Bore-Stroker Kit  (54.5mm Bore X 47.8mm Stroke). Send your complete engine with kickstarter and shifter to us. Includes:  Calculate Deck Height, Port Heights, Compression Ratio, Bore Cylinder, and Re-Plate, Head Modification for Big Bore/Longer Stroke, any Power Valve Modification needed, Big Bore Porting, 54.5mm Forged Piston Kit, 2mm Hot Rods Stroker Crank, and Rebuild, Complete Gasket Kit, Engine Seals, Crank Bearings, Crankcase Modification for Longer Stroke, Complete Engine Rebuild Labor, Return Shipping.
Price $1395.00   For 2001-11 KX85/1995-11 KX100

  Notes: Prices shown are to install Big Bore/stroker Kit in good condition engine. Should your engine need rebuild parts there will be additional
charges. We will call for approval before we install any parts that will have additional charges. (example: Transmission Parts, Clutch Parts,
Bearings other than Main Bearings)

  90cc Big Bore Parts Kit Only  Wiseco 50mm Piston Kit #644M05000, Top End Gasket Kit, and Top End Bearing.
Price $160.00   For
1988-00 KX80 

92cc Big Bore Parts Kit Only   Vertex 50.5mm Piston Kit #22875200, Top End Gasket Kit, and Top End Bearing.
Price $136.00   For
1988-00 KX80/2001-11 KX85 

 92cc Big Bore Parts Kit Only   Wiseco 50.5mm Piston Kit #782M05050, Top End Gasket Kit, and Top End Bearing.
Price $149.00   For
1988-00 KX80/2001-11 KX85 

 100cc Big Bore Parts Kit Only  Namura 52.5mm Piston Kit #NX20010, Top End Gasket Kit, and Top End Bearing.
Price $128.00   For
1988-00 KX80/2001-11 KX85 

100cc Big Bore Parts Kit Only   Wiseco 52.5mm Piston Kit #651M05250, Top End Gasket Kit, and Top End Bearing.
Price $149.00   For
1988-00 KX80/2001-11 KX85 

 100cc Big Bore Parts Kit Only   Wossner 52.5mm Piston Kit #8197D450, Top End Gasket Kit, and Top End Bearing.
Price $117.00   For
1988-00 KX80 

 100cc Big Bore Parts Kit Only   Wossner 52.5mm Piston Kit #8102D400, Top End Gasket Kit, and Top End Bearing.
Price $117.00   For
2001-11 KX85 

107cc Big Bore Parts Kit Only   Wiseco 54.5mm Piston Kit #651M05450, Top End Gasket Kit, and Top End Bearing.
Price $159.00   For
2001-11 KX85/1995-11 KX100   

96cc Big Bore-Stroker Parts Kit Only   Wiseco 50.5mm Piston Kit #782M05050, Hot Rods 2mm Stroker Crankshaft, Top End Gasket Kit, and Top End Bearing.
Price $335.00   For
1995-00 KX80/2001-05 KX85 

96cc Big Bore-Stroker Parts Kit Only   Wiseco 50.5mm Piston Kit #782M05050, Hot Rods 2mm Stroker Crankshaft, Top End Gasket Kit, and Top End Bearing.
Price $335.00   For
2006-11 KX85 

103cc Big Bore-Stroker Parts Kit Only   Wiseco 52.5mm Piston Kit #651M05250, Hot Rods 2mm Stroker Crankshaft, Top End Gasket Kit, and Top End Bearing.
Price $335.00   For
1995-00 KX80/2001-05 KX85 

103cc Big Bore-Stroker Parts Kit Only   Wiseco 52.5mm Piston Kit #651M05250, Hot Rods 2mm Stroker Crankshaft, Top End Gasket Kit, and Top End Bearing.
Price $335.00   For
2006-11 KX85 

112cc Big Bore-Stroker Parts Kit Only   Wiseco 54.5mm Piston Kit #651M05450, Hot Rods 2mm Stroker Crankshaft, Top End Gasket Kit, and Top End Bearing.
Price $345.00   For
2001-05 KX85/1995-05 KX100 

112cc Big Bore-Stroker Parts Kit Only   Wiseco 54.5mm Piston Kit #651M05450, Hot Rods 2mm Stroker Crankshaft, Top End Gasket Kit, and Top End Bearing.
Price $345.00   For
2006-11 KX85/2006-11 KX100