| Specification | Value |
|---|---|
| Bore - Oversize | Standard |
| Bore Size | 83.00 mm |
| Compression Ratio | Stock |
| Piston Material | 4032 Aluminum Alloy / Forged |
| Riding Style | ATV |
| Engine Type | 2-Stroke |
| Stroke Length | 70.00 mm / 70,00 mm |
| Units | Kit |
| Model | Forged Series |
| Piston Diameter | 82.92 mm |
| Skirt Coating | Non-Coated |
| Displacement | 400 cc |
| Product Name | Piston Kit |
- 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
- Features forged pistons, rings, wrist pins, and circlips
- 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
- 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
- Cylinder sleeves must be purchased separately.
- Service intervals may be increased with Racer's Choice pistons over conventional Wiseco pistons, and are for expert racers and tuners only.
FITMENTS
| Year | Make | Model |
|---|---|---|
| 2001-2003 | Polaris | Sportsman 400 |
| 1995-1996 | Polaris | Sportsman 400 4x4 |
| 1997 | Polaris | Sportsman 400L |
- Supplier:
- Parts Unlimited
- MAP:
- Yes
