RACE WINNING TECHNOLOGIES FOR 2/4 STROKE ENGINES AND BIG BORE PERFORMANCE
Max Power Inc. offers the largest selection of big bore kits for motorcycles and ATV's anywhere.  Max Power is the home of the Ice Cube cylinder.  Max Power has big bore and stroker kits available for both 2 stroke and 4 stroke engines.  We are also your one stop engine performance shop selling stock displacement performance modifications, high compression pistons, Hot Cams, Web Cams, big bore kits, Hot Rods stroker crankshafts, Rossier exhaust systems, Jardine exhaust systems, Leo Vince exhaust systems, Wiseco pistons, CP Pistons and Cometic gaskets.  Max Power Inc. also offers full service cylinder head work including porting and oversize valves from Xceledyne and Kibblewhite.  Max Power is one of only 4 companys in the US that has a true in-house cylinder plating facility.   Max Power can plate your cylinder with nickel silicon carbide called Apticote 2000, Max Power offers cylinder porting, head modifications, 2 stroke big bore kits, Stroker engines, supermini mods and is the only company that makes the YZ167.  2 Stroke and 4 stroke stroker crankshafts and crankshaft balancing are available too.    

CR 265 Big Bore

CR 285 Big Bore

CR 280 Big Bore/Stroker

Click here to see additional performance options for your CR 250R

CR 265R Big Bore

$950We Modify your top end.
$150Exchange top end - Call for availability - Additional Charge
$

"Bolt On" - Includes Cylinder, head, and power valves  (prices vary by year)

$100Optional Xtreme coated head and piston

 

 CR 265 Specifications:

 Fits 1997-2007 CR250R

Bore: Yes Stroke: No Actual Displacement = 265.34cc

Engine Modifications Required: 
Cylinder:Bore, Port and Replate with Apticote 2000 ceramic bore coating.
Power Valves: Machined to match big bore ports.
Head: Rechamber to work with the Big Bore piston. 100 octane suggested for most conditions.
Crankshaft:No crank mods required.
Crankcase:No crankcase mods required.
Blueprint:Calculate deck height, squish clearance, trapped volume, port timing and compression ratio and list on your perminant Spec-Sheet. (Some operations with install only)

Notes:  This kit requires you to send us your cylinder, head, and powervalves for modification.

Notes:  Core parts subject to inspection before credits will be issued.

Click Here to order this kit now!

 

CR 285R Big Bore

$1025We Modify your top end.
$150Exchange top end - Call for availability - Additional Charge
$

"Bolt On" - Includes Cylinder, head, and power valves (prices vary by year)

$100Optional Xtreme coated head and piston

 

 CR 285 Specifications:

 Fits 1997-2001 CR250R

Bore: Yes Stroke: No Actual Displacement = 285.06cc

Engine Modifications Required: 
Cylinder:Bore, Port and Replate with Apticote 2000 ceramic bore coating.
Power Valves: Machined to match big bore ports.
Head: Rechamber to work with the Big Bore piston. 100 octane suggested for most conditions.
Crankshaft:No crank mods required.
Crankcase:No crankcase mods required.
Blueprint:Calculate deck height, squish clearance, trapped volume, port timing and compression ratio and list on your perminant Spec-Sheet. ((Some operations with install only)

Notes:  This kit requires you to send us your cylinder, head, and powervalves for modification.

Notes:  Core parts subject to inspection before credits will be issued.

Click Here to order this kit now!

 

CR 280R Big Bore/Stroker

$2500Send us your engine and get a 280cc big bore/ stroker kit installed.
  
 

 

$100Optional Xtreme coated head and piston

 

 CR 280 Specifications:

 Fits 2002-2007 CR250R

Bore: Yes Stroke: Yes Actual Displacement = 280.08cc

Engine Modifications Required: 
Cylinder:Bore, Port and Replate with Apticote 2000 ceramic bore coating.
Power Valves: Machined to match big bore ports.
Head: Rechamber to work with the Big Bore piston and stroker crank. 100 octane suggested for most conditions.
Crankshaft:Stroked and balanced.
Crankcase:Modified to clear stroker crank.
Blueprint:Calculate deck height, squish clearance, trapped volume, port timing and compression ratio and list on your perminant Spec-Sheet.

Notes:  This kit requires you to send us your entire engine for modification.

Notes:  Also send kickstarter and shifter.

Notes:  Prices listed are to install stroker kit parts 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: rod kit, mains, main seals, trans parts)

Click Here to order this kit now!