Wossner pistons are made from dedicated forgings produced in-house to give you a light weight piston with superior strength and optimal design.
Being the multivalve piston technology leader, the line features specially designed valve pockets, complex dome and crown shapes, the steel nitride/napier xx rings and optimized skirt profiles.
Most OEM pistons have pin offset to keep the piston quiet. Only Wiseco does this with forged pistons.
Complete with rings, wristpins & locks, and specification sheets.
|
Product detailed specification |
|
|
Bore size |
83,50mm |
|
Stroke |
91,00mm |
|
Wossner compression ratio (CR) |
12,6:1 |
|
Rod Lgth. |
145mm |
|
Dome volume (CC) |
+2,6 |
|
Comp Ht. |
32mm |
|
Pin diameter |
20mm |
|
Fits for |
Alfa Romeo 145 / 146 / 155 / 156 / 166 / GTV / Spider 2.0 16V AR32301 |
Vehicle Compatibility
| Brand | Model | Generation / Chassis | Engine |
|---|---|---|---|
| Alfa Romeo | 145 | - | AR32301 |
| Alfa Romeo | 146 | - | AR32301 |
| Alfa Romeo | 155 | - | AR32301 |
| Alfa Romeo | 156 | - | AR32301 |
| Alfa Romeo | 166 | - | AR32301 |
| Alfa Romeo | GTV | - | AR32301 |
| Alfa Romeo | SPIDER | - | AR32301 |
WOSSNER
Official page: woessner-kolben.de
Wossner Forged Pistons for Alfa Romeo 146/156 GTV 83.5MM
| Brand | Model | Generation | Engine |
|---|---|---|---|
| Alfa Romeo | 145 | - | AR32301 |
| Alfa Romeo | 146 | - | AR32301 |
| Alfa Romeo | 155 | - | AR32301 |
| Alfa Romeo | 156 | - | AR32301 |
| Alfa Romeo | 166 | - | AR32301 |
| Alfa Romeo | GTV | - | AR32301 |
| Alfa Romeo | SPIDER | - | AR32301 |

Official page: woessner-kolben.de