Cylinder Boring for your V-Twin

After your Harley-Davidson® motorcycle has a lot of miles on it and it isn’t running as strong as it should.  The cylinders seem to wear closer to the top and they loose mechanical efficiency.  You have them bored to get them straight.  The engine will then run cooler and have more power.  Evolution motors’ cylinders have a tenancy to get out of round because of the long cylinder studs.  When the motor gets hot, in lines of traffic in hot weather, the cylinders will “barrel shape” themselves.

Freshening up the top ends of Evo’s will give you back your stock engine efficiency and power.  Over-boring cylinders depends on how much wear you have in the cylinders and how big a motor you want when you are done with the work.  When considering over-sizing a stock cylinder, you can maintain a cooler running big-inch motor with performance cylinders.  Performance cylinders are recommended when building a performance motor.  The more metal you have in the cylinders the more heat they can absorb and the less chance you have of over-heating.  

All of the cylinder work is done in house at Strokers USA, with SUNNED LBN 1660 honing machines and a Bridgeport boring machine.  All machine work is done in Lander, Wyoming with a normal three to five day turn-around, and Strokers USA will ship anywhere, anytime.” All work is guaranteed.