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QUESTIONS? Email:
CONTACT US HERE |

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If
you don't see your bike listed, call for selection and pricing
661-256-7309
| Singles CYLINDER
BORING - IRON SLEEVE |
| LC180 |
Bore and hone with piston purchase |
$47.50 |
| LC181 |
Bore and hone with customer's pistons |
85.00 |
| LC201D |
Deglaze
cylinder |
16.00 |
| Singles CYLINDER
BORING - ALUMINUM NIKASIL PLATED |
| LC145 |
Bore
and re-nikasil single cylinder - w/Piston purchase |
210.00 |
| LC146 |
Bore
and re-nikasil single cylinder - w/customer piston |
230.00 |
 |
| Athena
Big Bore Cylinders from Bigborethumpers.com are an all new casting
specifically for big bores. They are not simply bored out stock
size blocks. Athena makes these blocks with larger water jackets
and thicker cylinder walls to help with cooling. Athena kits
come with new cylinder, piston, rings, pin gaskets. Click
here to see the complete line of Athena cylinder kits. |
|
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|
SCROLL DOWN
FOR ATV PISTONS...
YAMAHA
- YZ250F 2001-04
| DISPLACEMENT |
BORE SIZE |
COMP RATIO |
PART# |
MFG CODE |
NOTES |
PRICE |
| 250cc |
77MM |
13.5:1 |
221798 |
 |
STD |
167.53 |
| 263cc |
79MM |
13:1 |
247943 |
 |
2
mm over. |
167.53 |
| 263cc |
79MM |
12.7:1 |
4872M07900 |
 |
2 mm over. |
187.00 |
| 270cc |
80MM |
13:1 |
21002-K01-JE |
 |
Piston, rings,pin, clips gaskets and block. |
559.00 |
YAMAHA
- YZ250F 2005-08
| DISPLACEMENT |
BORE
SIZE |
COMP
RATIO |
PART# |
MFG
CODE |
NOTES |
PRICE |
| 263cc |
79MM |
12.7:1 |
4872M07900 |
 |
2 mm
over. |
187.00 |
| 263cc |
79MM |
13:1 |
247939 |
 |
2 mm
over. |
167.53 |
YAMAHA
- WR250 2001-2004
| DISPLACEMENT |
BORE SIZE |
COMP RATIO |
PART# |
MFG CODE |
NOTES |
PRICE |
| 270cc |
80MM |
13:1 |
21002-K01-JE |
 |
Piston, rings,pin, clips gaskets and block. |
559.00 |
YAMAHA
- YZ400F 1998-'99, WR4000F 1998-00
| DISPLACEMENT |
BORE SIZE |
COMP RATIO |
PART# |
MFG CODE |
NOTES |
PRICE |
| 417cc |
94MM |
13.5:1 |
4650M09400 |
 |
2
mm over. |
Discontinued |
YAMAHA
- YZ426 2000-02, WR426 2001-02
| DISPLACEMENT |
BORE SIZE |
COMP RATIO |
PART# |
MFG CODE |
NOTES |
PRICE |
| 426cc |
95MM |
13.5:1 |
4694M09500 |
 |
STD |
188.70 |
| 444cc |
97MM |
13.5:1 |
4694M09700 |
 |
2
mm over. |
212.50 |
YAMAHA
- YZ450 2006-07
| DISPLACEMENT |
BORE
SIZE |
COMP
RATIO |
PART# |
MFG
CODE |
NOTES |
PRICE |
| 450cc |
95MM |
14:1 |
4929M09500 |
 |
STD |
183.62 |
YAMAHA
- YZ450F 2003-08
| DISPLACEMENT |
BORE SIZE |
COMP RATIO |
PART# |
MFG CODE |
NOTES |
PRICE |
| 449cc |
95MM |
13.5:1 |
4786M09500 |
 |
STD |
188.70 |
| 449cc |
95MM |
13.5:1 |
247625 |
 |
STD |
167.53 |
| 469cc |
97MM |
12.5:1 |
4785M09700 |
 |
2
mm over. |
Discontinued |
| 469cc |
97MM |
13.5:1 |
4786M09700 |
 |
2 mm over. |
Discontinued |
| 469cc |
97MM |
13:1 |
247627 |
 |
2
mm over. |
167.53 |
| 478cc |
98MM |
13:1 |
247942 |
 |
3
mm over. |
167.53 |
| 478cc |
98MM |
13.5:1 |
21003-K01-CP |
 |
Piston, rings,pin, clips gaskets and block. |
589.00 |
YAMAHA
- XT500, TT500, SR500
| DISPLACEMENT |
BORE
SIZE |
COMP
RATIO |
PART# |
MFG
CODE |
NOTES |
PRICE |
| 534cc |
90MM |
11:1 |
4190M09000 |
 |
3
mm over. |
158.74 |
YAMAHA
ATV - YFZ450 2004
| DISPLACEMENT |
BORE SIZE |
COMP RATIO |
PART# |
MFG CODE |
NOTES |
PRICE |
| 449cc |
96MM |
13:1 |
4835M09600 |
 |
96
BORE - 450 class legal |
187.00 |
| 469cc |
97MM |
13:1 |
247953 |
 |
2
mm over. |
167.53 |
| 478cc |
98MM |
13:1 |
247952 |
 |
3
mm over. |
167.53 |
YAMAHA
ATV - YFM600 GRIZZLY 1998-01
| DISPLACEMENT |
BORE
SIZE |
COMP
RATIO |
PART# |
MFG
CODE |
NOTES |
PRICE |
| 598cc |
97MM |
STD |
4797M09700 |
 |
2 mm
over. |
169.23 |
| 634cc |
98MM |
10:1 |
4607M09800 |
 |
3 mm
over. |
178.79 |
|