WJ Cylinder Head – 52 mm Stroke – Piaggio AC 172 cc

219.95

 

 

Product description

Color: Clear

Contents:
– 1x WJ Cylinder Head
– 1x O-ring

Description

The WJ AC Cylinder Head is a high-compression cylinder head, specially developed for the Malossi 172cc AC and HT 65/65.6mm AC cylinders with a 52 mm stroke.

Thanks to the thicker cooling fins, the cylinder head offers improved heat dissipation. The modified combustion chamber and compression ratio also deliver better performance compared to the original Malossi cylinder head. During our tests , we achieved a power gain of over +2 PK with this setup.

✓ High-compression version
✓ Thicker cooling fins for better heat dissipation
✓ Optimized combustion chamber
✓ Up to over +2 PK in our tests
✓ Compatible with Malossi 172cc AC and HT 65/65.6mm AC

Temperature Sensor

The WJ cylinder head is equipped with an integrated M10x1 connector for an LC temperature sensor, compatible with Koso and similar sensors, among others.

As a result, a temperature sensor under the spark plug is no longer necessary. This prevents problems in which the sensor or ring could cause the spark plug to come loose or damage the threads.

⚠️ Always install the copper sealing ring under the temperature sensor.

Specifications

Brand:

N/A

Model:

N/A

Engine Type:

N/A

SKU:

CYL-PIA-CK-AC-52-1

Customers also viewed

Malossi 172cc LC Cylinder 2026 – Piaggio Maxi LC

329.95

Crankcase Tuning Template – Piaggio Maxi 125/180cc 2-Stroke

12.95

O-Ring – Water Pump Pipe – Piaggio 125/180cc 2-Stroke LC

4.95

Quick links
Questions about orders or products? Send us a message
Want to stay up to date with the latest news? Subscribe to our newsletter
  • Item added to cart
Your shopping cart
Polini Clutch Bell – Piaggio Maxi 125/180cc
99.99
Nut – DIN 934 – M8x1.0
Nut – DIN 934 – M8x1.0
Price: 2.95
- +
2.95
Spark Plug – NGK BR10EIX Iridium IX
19.95
    Calculate Shipping
    The shipping options will be updated at checkout.

    WJ Cylinder Head – 52 mm Stroke – Piaggio AC 172 cc

    has been added to your cart

    Cart

    All your chosen products

    Remove item Thumbnail image Product Price Quantity Subtotal
    × Polini Clutch Bell – Piaggio Maxi 125/180cc Polini Clutch Bell – Piaggio Maxi 125/180cc 99.99
    99.99
    × Nut – DIN 934 – M8x1.0 Nut – DIN 934 – M8x1.0 2.95
    2.95
    × Spark Plug – NGK BR10EIX Iridium IX Spark Plug – NGK BR10EIX Iridium IX 19.95
    19.95

    Subtotal 122.89
    Shipping

    The shipping options will be updated at checkout.

    Total 130.54 (including 22.65 VAT)