1. Husqvarna Motorcycles Made In Sweden - About 1988 and older

77 Wr360 Piston

Discussion in 'Vintage/Left Kickers' started by dieseldigger, Nov 30, 2018.

  1. dieseldigger Husqvarna
    AA Class

    Husqvarna Motorcycle:
    82 420 auto, wr250, 400, 360
    Other Motorcycles:
    lots
    I'm rebuilding a 77 WR360. It has the standard bore but is getting a little loose. Can I use a standard size 390 piston and bore out 1mm? Is the 390 piston the same crown height? Skirt? Pin size? Looks like Wossner makes one. I'd love to have one but I'm certainly not paying the ridiculous prices for NOS mahle pistons. I think it would be cheaper to have a custom piston made.
    Thanks, Brad
  2. jimspac Husqvarna
    Pro Class

    Location:
    Connecticut
    Husqvarna Motorcycle:
    82 250WR, 82 430WR, 84 250WR, 85 400
    Other Motorcycles:
    86 400WR, 82 Montesa Cota 349
  3. markt2 Husqvarna
    AA Class

    Location:
    Nevada
    Husqvarna Motorcycle:
    1976 250CR (times 2)
    Other Motorcycles:
    Several vintage Yamahas
  4. jimspac Husqvarna
    Pro Class

    Location:
    Connecticut
    Husqvarna Motorcycle:
    82 250WR, 82 430WR, 84 250WR, 85 400
    Other Motorcycles:
    86 400WR, 82 Montesa Cota 349
  5. dieseldigger Husqvarna
    AA Class

    Husqvarna Motorcycle:
    82 420 auto, wr250, 400, 360
    Other Motorcycles:
    lots
    Thanks, Guys. I guess if Philip is selling a standard 390 piston as a second over 360 piston, it must have the correct skirt length. Thanks, Brad