In stock

B48B20 and B58B30


4032         Forged

7.9cc         Dish volume

11.0:1       Compression Ratio       

308g         Weight

Bore Ø       82.00mm


Compression height  32.2mm

Valve pockets depth  

Intake        4.0mm

Exhaust     3.5mm 

Pin             22x51mm

Rings         1.2 1.5 2.0mm 

Full kit:

4/6 pistons, 4/6 piston ring sets, 4/6 wrist pins and 8/12 clips

Piston wall clearance 0.03-0.04mm
Ring End Gap
Top 0.3-0.4mm
Second 0.3-0.4mm
Oil 0.25-0.5mm
Piston wall clearance 0.035-0.05mm
TOP Ring end gap 0.3-0.5mm
Second ring end gap 0.4-0.5mm
Oil ring end gap 0.25-0.5mm

B48B20 B58B30

  • Product Code: 423001
  • Availability: 10
  • € 400

Available Options

Tags: B48B20 B58B30