Description
- Forged from high-silicon aluminum alloy for maximum strength and dependability
- Wiseco offers a complete range of popular piston models and years for both trail and racing applications
- Durability, longevity and increased horsepower
- Innovative forging design and piston skirt provide maximum horsepower and torque
- Feature forged pistons, rings, wrist pins, and circlips
- Cylinder sleeves must be purchased separately
- Now you can own the same race parts as all the top race teams
- These high-tech piston designs offer maximum compression ratios, ultra-stiff strutted forgings, and titanium nitride-coated rings, which all add up to more power that is sustained longer
- When blow-by starts to increase on other pistons and power starts to fade, Wiseco Race Series parts continue sealing and performing
- Have additional features over standard Pro-Lite parts
- Each piston is E-Coated on the crown, ring grooves, and pin bore, for maximum wear resistance and protection from micro-welding, galling, and detonation
- GP Series parts generally have less machining on the outside, which helps seal up the bore for increased compression
- Additionally, boost ports are removed for a more predictable powerband and increased pull on the top end
- Service intervals may be increased with Racer’s Choice pistons over conventional Wiseco pistons, and are for expert racers and tuners only.
| PISTON MATERIAL | ALUMINUM ALLOY / FORGED |
| BORE SIZE | 83.50 MM |
| BORE – OVERSIZE | +0,50 MM / +0.50 MM |
| DISPLACEMENT | 400 CC |
| ENGINE TYPE | 2-STROKE |
| STROKE LENGTH | 70,00 MM / 70.00 M |
| 2002-2003 | Polaris | Scrambler 400 X 4×4 | – | – |
| 2000-2002 | Polaris | Scrambler 400 4×2 | – | – |
| 1997 | Polaris | Sportsman 400 L 4×4 | – | – |
| 1996-2003 | Polaris | Xpress 400 L | – | – |
| 1995-2003 | Polaris | Xplorer 400 4×4 | – | – |
| 1995-2003 | Polaris | Xplorer 400 L | – | – |
| 1995-2000 | Polaris | Scrambler 400 4×4 | – | – |
| 1994-2000 | Polaris | Sport 400 | – | – |
| 1994-1999 | Polaris | Sport 400 L | – | – |
| 1994-1997 | Polaris | Big Boss 400 L 6×6 | – | – |
| 1994-1996,2001-2003 | Polaris | Sportsman 400 4×4 | – | – |
