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MotoHP 173cc 66mm Piston

Time to Go Big or Go Home. The next MotoHP engine package is now here. Tired of your SCOUT needing to be rebuilt after every race. Or your Stroker SCOUT, trying to turn the piston in the cylinder ?
Our 66mm aluminum-forged pistons are lighter and more dependable than most cast or hypereutectic pistons, giving you the performance you want. Wiseco uses the world’s most advanced forging process followed by an extensive heat-treat and finishing process that assures performance and reliability for your Mini. We had these pistons custom made for MotoHP and will clear the S35 or TB V2 cam.

If your MotoHP 165 is ready to be rebuilt, the new 173cc piston is the answer. Just bore the cylinder and put it back together. You can bore any sleeved 63mm cylinder to accept the new MotoHP race piston.

Stock stroke 173cc
5mm stroke 188cc

Piston 66mm w/pin and clips
Complete set of rings.
$167.95

Compete engine package

New Cylinder bored for the 66mm piston
Piston 66mm w/pin and clips
Complete set of rings
Head/Base gasket
$339.95




Kennedy Racing Exhaust

This is the New Kennedy "Triple Threat" Racing Exhaust. The new 3 step pipe is the best pipe we have seen in years.

Wondering which Big Bore Pipe would be the best for your fire breathing mini ?. Kennedy Racing has the solution with it's race proven exhaust. MotoHP has been testing the best pipes available and we are running the new Kennedy KLX110 race pipe.

Save Weight
Improve overall performance
Race Proven
Stainless Steel
Billet Aluminum End Cap
Repackable exhaust
Extra thick flange, so it will not bend lie the others.




Bosch Video

The video page has been updated.




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