piston types

Discussion in 'Engine, Fuel and Exhaust' started by ridemywg, Jan 15, 2010.

  1. ridemywg

    ridemywg Member

    Thinking of going .10 over for the pistons on my 89 EVO. The mechanic that went over my motor and is suggesting to do a .10 over suggested using OEM pistons and I'm wandering whats the differnce/benefit from one manufactures piston to the next ?
  2. Bud White

    Bud White Well-Known Member Retired Moderators

    all depends what ya wanna do with it .. if its mostly stock stick to the hd .. if you want to go wilder wiesco pistons are good they are as good as stock maybe better but in a stock engine usually not worth the extra cost
  3. Chopper

    Chopper Senior Member

    With a touring bike, personally I would stay with OEM stock compression pistons, more compression more heat and harder on the lower end. HD has quality engine parts, other manufactures do also but when you're flywheels were balanced at the factory it was with OEM pistons, if you go aftermarket the weight might be a little more or less? If you're OEM pistons lived 29 years in you're engine, that's not a bad track record.