top of page


  • I have a 2 cylinder engine. Can I bore just one side?
    Yes, you can bore just one side. Boring one side is virtually undetectable.
  • Will my engine be out of balance if I have one oversize piston and one stock?
    No. Modern pistons, particularly forged pistons, are internally lightened to compensate for the larger diameter.
  • Will my engine run hotter once it is bored?
    No, when bored properly your engine will run no hotter than it does stock.
  • Should I mix extra oil in the gas?
    No, do not mix extra oil with your gas. Adding extra oil can cause the piston to run hotter during break-in, excess carbon to accumulate and the cylinder walls to glaze and the rings may not seal properly if at all.
  • What is the difference between cast and forged pistons?
    A cast piston is liquid molten aluminum poured or injected into a mold. A forged piston is made from a solid ingot and pressed or extruded into shape before machining.
  • What piston would you recommend? Why?
    A forged piston, specifically Wiseco pistons. 1- Cast pistons are brittle and often shatter causing catastrophic engine damage. Forged pistons are stronger to a much higher temperature than a cast piston could endure. 2- Forged pistons dissapate heat better and run cooler than cast pistons. 3- Forged pistons are a hi-silicon, low expansion aluminum alloy with improved cam and taper grind from computerized machining, that controls expansion to allow tighter pistonto wall clearances. This increases piston stability and maximizes horsepower. 4- A forged piston is also lighter than a cast piston because less material is needed to manufacture a strong and dependable forged piston.
bottom of page