QUESTIONS? Email:

sales@bigborethumpers.com





If you don't see your bike listed, call for selection and pricing 661-256-7309

CYLINDER BORING - IRON SLEEVE

 Singles

LC180  Bore and hone with piston purchase $47.50
LC181  Bore and hone with customer's pistons 85.00
LC201D Deglaze cylinder 16.00

CYLINDER BORING - ALUMINUM NIKASIL PLATED

Singles

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.

 

POLARIS PISTONS...

POLARIS - REDATOR 500 2003-'04
DISPLACEMENT BORE SIZE COMP RATIO PART# MFG CODE NOTES PRICE
500cc 99.2 11:1 209286 STD 154.80
558cc 104.83MM 12.5:1 4807M10483

5.63 mm over. Disc.
560cc 105mm 12.5:1 222388

+5.8mm 167.53

2008 RANGER//RZR
DISPLACEMENT BORE SIZE COMP RATIO PART# MFG CODE NOTES PRICE
760cc 80mm 10.75:1 274203 Std. bore - Deglaze DISC. 
760cc 80mm 12:1 M9017 Std. bore - Deglaze Call or email for pricing.
760cc 82mm 11.5:1 M9019 Std. bore - Deglaze Call or email for pricing.
780cc 83mm 12:1 274207 +2mm - Bore and replate DISC.