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CRF 450 Piston Honda CRF450R Piston Kits Standard Bore, Big Bore and High
Compression CRF 450 R Dirt Bike Racing Pistons
CP Pistons, CRF 450 R 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 450R pistons, buy CP.
The following sizes of CP Pistons Honda CRF450R big bore kits are available, 458cc, 468cc, 477cc and 486cc.
CP Pistons dirt bike racing pistons are
used by top professional riders and teams
Standard Features included with each Honda
CRF450R CP Piston Kit: |
| 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 |
Cometic top end gasket sets are available separately, but
are not included with the piston kit. The matching top end gasket kit for each application
is listed in the table below, along with the individual piston kit info.
Each of the below kits
include:
-
Piston
- Piston Pin
- Piston Rings
- Pin Locks
2002 - 2008 Honda CRF450R CP Piston Kit and Big
Bore CRF 450 R Piston
High Compression CRF450R Piston
Stock Bore size is 96mm (3.780") Stock
Stroke is 62mm (2.441") |
| Part # |
Bore Size |
Cubic
Centimeters |
Compression |
Top End Gasket Kit # |
Installation
Notes |
| cp m2009 |
96mm std. |
450cc |
12.5-1 |
cp c3047est |
deglaze cylinder |
| cp m2029 |
96mm std. |
450cc |
13.0-1 |
cp c3047est |
deglaze cylinder |
| cp m2010 |
96mm std. |
450cc |
13.5-1 |
cp c3047est |
deglaze cylinder |
| cp m2011 |
97mm +1mm |
458cc |
12.5-1 |
cp c3047est |
bore and replate cylinder |
| cp m2012 |
97mm +1mm |
458cc |
13.5-1 |
cp c3047est |
bore and replate cylinder |
| cp m2013 |
98mm +2mm |
468cc |
12.5-1 |
cp c3049est |
bore and replate cylinder |
| cp m2031 |
98mm +2mm |
468cc |
13.0-1 |
cp c3049est |
bore and replate cylinder |
| cp m2014 |
98mm +2mm |
468cc |
13.5-1 |
cp c3049est |
bore and replate cylinder |
| cp m2015 |
99mm +3mm |
477cc |
12.5-1 |
cp c3049est |
requires sleeve or cylinder |
| cp m2016 |
99mm +3mm |
477cc |
13.5-1 |
cp c3049est |
requires sleeve or cylinder |
| cp m2032 |
100mm +4mm |
486cc |
12.0-1 |
cp c3077est
|
requires sleeve or cylinder |
| cp m2052 |
100mm +4mm |
486cc |
13.5-1 |
cp c3077est
|
requires sleeve or cylinder |
2002 - 2008 CRF450 R PISTON FULL RACE PISTON
Stock Bore size is 96mm (3.780") Stock Stroke is 62mm (2.441")
Full
race model 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 gasports are added to maximize ring seal while a
skirt coating is included to provide additional lubrication, minimizing friction in extreme
conditions. The full race
pistons come complete with high performance rings, lightweight pins and locks. |
| cp m2045 |
96mm std. |
450cc |
14-1 |
cp c3047est
|
deglaze cylinder |
Cylinder Works NEW CRF450R Standard Bore and CRF 450 Big Bore Cylinders
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
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 |
Complete CRF 450 Big Bore Kit |
Replacement CRF450 Big Bore Piston |
CRF450 Big Bore Top End Gasket Kit |
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 |
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CP Pistons racing pistons are
used by top professional riders and teams including:
| Team Suzuki |
Chad Reed |
Mike Alessi |
Ryan Dungey |
| MDK Wonder Warthog |
Heath Voss |
Tyler Bowers |
Eric Sorby |
| MDK/Lucas Oil/Yamaha |
White Bros. Yamaha |
Rick Ware Racing |
Team Solitaire |
The pistons and gaskets listed on this page fit the following model
year CRF450 R Dirt bike engines:
2002 2003 2004 2005 2006 2007 2008 Honda CRF 450R Piston Kit
© Motorsports Parts Corporation T/A Campbell Enterprises. All rights reserved
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