Performance Parts and Racing Parts Campbell Enterprises

CRF 450 Piston Honda CRF450R Piston Kits Big Bore and CRF 450 High Compression Racing Pistons

Honda CRF450 Dirt Bike CP Pistons Logo

CP Pistons, CRF 450 Pistons for those that demand the ultimate in engine performance!

Honda CRF450R piston kits, high compression, big bore and stock standard bore high performance and racing piston kits are available from CP Pistons for all model years of the CRF450R four stroke dirt bikes. We offer the complete CP Pistons Honda CRF450 R product line. These superior forged pistons will work with oversize valves as well as high lift camshafts as they include oversize valve reliefs. They incorporate a "X" style forging for greater strength, durability and reduced weight. Along with the full radius dome designs, high performance piston rings and lightweight piston pins, these pistons offer the highest quality and are engineered for maximum power output. Buy the Best CRF 450 pistons, buy CP.

The following sizes of CP Pistons Honda CRF450R big bore kits are available, 458cc, 468cc, 477cc and 486cc.

CP Pistons CRF 450R dirt bike racing pistons are used by top professional riders and teams.

CP CRF 450 R Honda Piston Image

Standard Features included with each Honda CRF450R CP Piston Kit:

Standard series pistons have a "M" in the part number

Double forced pin oilers Fully CNC Machined
Accumulator groove Pick lock removal grooves
Anti detonation grooves X-style forging
Light weight pins Balanced to + or - 1 gram

Additional Features for "Project X" Series CRF 450R Pistons

Project X Series pistons are the result of the latest in ultra high performance technology improvements from CP. Pistons listed below with "MX" preceding the part number are part of the new "Project X" piston line up. Piston and gasket kits with a "CPKX" preceding the part number include a Project X series piston in the kit.

Project X series pistons and top end kits all have a "X" in the part number

Leading edge racing piston technology Fully boxed style forging for ultimate strength, durability and power
Coated Piston Skirts Internal windows allow additional oil to flow to pin
New piston skirt designs maximize power and reduce piston rocking Wrist pins treated with proprietary coating to eliminate pin galling

 

Get HOLESHOT WINNING POWER with CP Pistons!

 

Honda CRF 450 Piston Kit and CRF450R High Compression Piston Kits

  • Piston/Gasket Kit Set includes: 1 Piston, 1 Piston Pin, Piston Rings, Pin Lock rings, 1 Top End Gasket Kit
  • Piston Kit includes: 1 Piston, 1Piston Pin, 1 set Piston Rings, Pin Lock rings for 1 cylinder
  • Gasket Kit Includes: Cometic high performance top end gaskets required to replace piston in 1 cylinder

 

2002 - 2008 Honda CRF450R CP Piston Kit and Big Bore CRF 450 R Piston

Stock Bore size is 96mm (3.780") Stock Stroke is 62mm (2.441")

Description Installation Notes

Honda CRF 450 piston and top end gasket kit

Piston/Gasket Kit

Honda crf450r piston kit

Piston Kit

Honda CRF450 R top end gasket kit

Gasket Kit
Replacement
Piston Rings
96mm standard bore (449cc) 12.5-1 comp deglaze cylinder CPK2009


Add To Cart

M2009


Add To Cart

C3047est

$81.75 $73.58

Add To Cart

CPN2-2-3780
96mm standard bore (449cc) 12.5-1 comp deglaze cylinder CPKX2009


Add To Cart

MX2009


Add To Cart

C3047est

$81.75 $73.58

Add To Cart

CPN2-2-3780
96mm standard bore (449cc) 13.0-1 comp deglaze cylinder CPK2029


Add To Cart

M2029


Add To Cart

C3047est

$81.75 $73.58

Add To Cart

CPN2-2-3780
96mm standard bore (449cc) 13.0-1 comp deglaze cylinder CPKX2029


Add To Cart

MX2029


Add To Cart

C3047est

$81.75 $73.58

Add To Cart

CPN2-2-3780
96mm standard bore (449cc) 13.5-1 comp deglaze cylinder CPK2010


Add To Cart

M2010


Add To Cart

C3047est

$81.75 $73.58

Add To Cart

CPN2-2-3780
96mm standard bore (449cc) 13.5-1 comp deglaze cylinder CPKX2010


Add To Cart

MX2010


Add To Cart

C3047est

$81.75 $73.58

Add To Cart

CPN2-2-3780
97mm +1mm oversize (458cc) 12.5-1 comp bore and replate cylinder CPK2011


Add To Cart

M2011


Add To Cart

C3049

$59.95 $53.96

Add To Cart

CPN2-2-3819
97mm +1mm oversize (458cc) 13.5-1 comp bore and replate cylinder CPK2012


Add To Cart

M2012


Add To Cart

C3049

$59.95 $53.96

Add To Cart

CPN2-2-3819
98mm +2mm oversize (468cc) 13.0-1 comp bore and replate cylinder CPK2031


Add To Cart

M2031


Add To Cart

C3049

$59.95 $53.96

Add To Cart

CPN2-2-3858
98mm +2mm oversize (468cc) 13.5-1 comp bore and replate cylinder CPK2014


Add To Cart

M2014


Add To Cart

C3049

$59.95 $53.96

Add To Cart

CPNZ - 3858
99mm +3mm oversize (477cc) 12.5-1 comp requires sleeve or cylinder CPK2015


Add To Cart

M2015


Add To Cart

C3049

$59.95 $53.96

Add To Cart

CPN2-2-3897
100mm +4mm oversize (486cc) 13.5-1 comp requires sleeve or cylinder CPK2052


Add To Cart

M2052


Add To Cart

C3077

$45.35 $40.82

Add To Cart

CPN2-2-3937

2009 - 2014 Honda CRF 450R CP Piston Kits and CRF450R Big Bore Kits

Stock Bore size is 96mm (3.780") Stock Stroke is 62mm (2.441")

96mm standard bore (449cc) 12.5-1 comp deglaze cylinder CPK2057


Add To Cart

M2057


Add To Cart

C3270

$69.95 $62.96

Add To Cart

CPN2-2-3780
96mm standard bore (449cc) 12.5-1 comp deglaze cylinder CPKX2057


Add To Cart

MX2057


Add To Cart

C3270

$69.95 $62.96

Add To Cart

CPN2-2-3780
96mm standard bore (449cc) 13.0-1 comp deglaze cylinder CPK2058


Add To Cart

M2058


Add To Cart

C3270

$69.95 $62.96

Add To Cart

CPN2-2-3780
96mm standard bore (449cc) 13.0-1 comp deglaze cylinder CPKX2058


Add To Cart

MX2058


Add To Cart

C3270

$69.95 $62.96

Add To Cart

CPN2-2-3780
96mm standard bore (449cc) 13.5-1 comp deglaze cylinder CPK2059


Add To Cart

M2059


Add To Cart

C3270

$69.95 $62.96

Add To Cart

CPN2-2-3780
96mm standard bore (449cc) 13.5-1 comp deglaze cylinder CPKX2059


Add To Cart

MX2059


Add To Cart

C3270

$69.95 $62.96

Add To Cart

CPN2-2-3780
98mm +2mm oversize (468cc) 13.0-1 comp bore and replate cylinder CPK2069


Add To Cart

M2069


Add To Cart

C3275

$59.95 $53.96

Add To Cart

CPN2-2- 3858

Full Race Series CRF 450 R RACING Pistons

Full race series pistons are custom forged pistons but available off the shelf. These are single ring, high compression, lightweight pistons which feature a highly efficient dome design that maximizes squish without compromising performance. Lateral gas ports are added to maximize ring seal while a skirt coating is included to improve power and provide additional lubrication, minimizing friction in extreme competition conditions.

These kits are the preferred choice of many top professionals. Utilizing CP's Project X championship technology, each kit has been developed to ensure maximum power and durability. Engineered for the serious racer and proven to deliver - Many of the top racers and engine builders in motorsports ask for these kits by name.

The full race pistons come complete with high performance rings, lightweight pins and locks.

2002 - 2008 Honda CRF450R FULL RACE Piston Kit

Stock Bore size is 96mm (3.780") Stock Stroke is 62mm (2.441")

96mm standard bore (449cc) 14-1 comp deglaze cylinder CPKX2045


Add To Cart

MX2045


Add To Cart

C3047est

$81.75 $73.58

Add To Cart

CPN2-2-3780

2009 - 2014 Honda CRF 450R FULL RACE Piston Kit

Stock Bore size is 96mm (3.780") Stock Stroke is 62mm (2.441")

96mm standard bore (449cc) 14-1 comp deglaze cylinder CPKX2063


Add To Cart

MX2063


Add To Cart

C3270

$69.95 $62.96

Add To Cart

CPN2-2-3780

 

Honda CRF 450R Project X Platinum Racing Piston, Carrillo Connecting Rod and Cometic Gasket Kits

Developed and proven in the 2009 AMA outdoor motocross season, these championship winning kits have once again changed the game. Project X Platinum Kits feature the same top of the line products that top professionals rely on. The redesigned piston and rod combo gives your engine a lightweight assembly that is engineered to give you more power and durability. Revolutionary to the industry, these types of assemblies were once only available as custom pieces at custom prices. Now, off the shelf and available, these kits are just the thing you need to transform your bike into a racing machine without breaking the bank.

  • Platinum Kit includes: Full Race Piston, Piston Pin, Piston Rings, Pin locks, Carrillo Rod and Gasket Kit
  • Piston Kit includes: Full Race Piston, Piston Pin, Piston Rings, Pin Lock rings for 1 cylinder
  • Gasket Kit Includes: Cometic high performance top end gaskets required to replace piston and rod in 1 cylinder

 

2002 - 2008 Honda CRF450R Project X Platinum Kit

Stock Bore size is 96mm (3.780") Stock Stroke is 62mm (2.441")

Bore Size Disp. Comp Installation
Notes

2010 kawasaki kx250f piston, 2010 kx250f rod and top end gasket kit

Platinum Kit

Honda crf450r piston kit

Piston Kit

Honda CRF 450 R top end gasket kit

Gasket Kit
96mm std. 449 cc 13.5-1 deglaze cylinder, 1mm Smaller Pin/ 3mm Longer Rod Lightweight cp kx2p10

Add To Cart
cp mx2p10

Add To Cart
C3047est
$81.75 $73.58

Add To Cart

2009 - 2014 Honda CRF 450R Project X Platinum Kit

Stock Bore size is 96mm (3.780") Stock Stroke is 62mm (2.441")

96mm std. 449 cc 14.0-1 deglaze cylinder, 1mm Smaller Pin/ .5mm Longer Rod Lightweight cp kx2p63

Add To Cart
cp mx2p63

Add To Cart
C3270est
$89.95 $80.96

Add To Cart

 

Carrillo Honda CRF 450 Connecting Rod CRF450R Rod

Honda CRF 450 Carrillo Connecting Rod Carrillo CRF450R connecting rod image

Premium Carrillo CRF 450R connecting rod provides superior strength for extreme high performance and racing CRF450 engines. Designed with legendary Carrillo quality to give you an extremely strong and dependable replacement connecting rod at a reasonable price. Can be used as a stock replacement connecting rod as well as for high performance and racing engines, including big bore engines.

2002 - 2008 CRF 450R Connecting Rod

HO-45CA-2<-04156N

$272.85 $253.75

Add To Cart

2009 - 2014 CRF450R Connecting Rod

HO-4509CA-2<-04016N

$272.85 $253.75

Add To Cart

Replacement Special Carrillo CRF450R Connecting Rod for CP Pistons Platinum Kit

The CRF 450 connecting rods listed in this row are for use ONLY with the CP Platinum series pistons.

2002 - 2008 CRF450 CP Platinum Kit Rod

HO-4518CA<-04274N

$374.50 $348.29

Add To Cart

2009 - 2014 CRF 450 CP Platinum Kit Rod

HO-450918CA<-04036N

$374.50 $348.29

Add To Cart

 

 

Cylinder Works NEW CRF450R Standard Bore and CRF 450 Big Bore Cylinders

Cylinder Works New Replacement Cylinder

Cylinder Works convenient drop in four stroke CRF 450 cylinders take the hassle and the time out of sending in your worn or damaged cylinders for honing and re-plating.

All Cylinder Works cylinders are brand new and both standard bore and big bore sizes look virtually identical to stock OEM cylinders. They are nickel silicon carbide plated for long life and they are precision honed to exact size for easy piston installation. When you purchase a Cylinder Works cylinder there is no core charge or exchange. You receive a brand new, ready to install cylinder.

This big bore cylinder is designed as a true "drop in" with no extra machine work required to your engine or cases.

Bore Size
Disp.
Model Years
Cylinder Part # and Price
95mm standard 450cc 2004 - 2009 cw 20001
98mm +3mm oversize big bore 478cc 2004 - 2009 cw 21001

 

Cylinder Works CRF 450 Big Bore Kits

CRF 250R Big Bore Kit

Cylinder Works CRF450 Big Bore Kit features and included parts:

  • New cylinder, honed to size for easy piston installation
  • Piston kit
  • Gasket kit
  • Virtually Identical in appearance to stock
  • Just purchase and install no additional machine work required
  • Fits 2004 - 2009 models

 

Bore Size
Disp.
Model
Years

crf250r big bore kit

Complete CRF 450 Big Bore Kit

Cylinder Works replacement piston

Replacement CRF450 Big Bore Piston

replacement gasket kit

CRF450 Big Bore Top End Gasket Kit

replacement piston rings

Big Bore CRF450 Piston Ring Set

98mm +3mm big bore 478cc 2004-09 cw 21001-k01 cw 21001-p01 cw 21001-g01 cw 21001-r01

The CP pistons and gaskets listed on this page fit the following model year CRF450 R Dirt bike engines:

2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 Honda CRF450R Piston Kit

Return to top of CRF450 Piston page

 

 

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