Volvo B19/B20/B30 Standard Piston Set (1974–) – 88.90 mm

Standard piston set for Volvo B19, B20 and B30 engines from model year 1974 onward, featuring the original 88.90 mm bore diameter and a 24 mm piston pin. Intended for engines retaining the standard bore during rebuilds where original geometry, reliability, and quiet operation are priorities.

The pistons feature a flat-top design in line with original specifications, providing a predictable combustion chamber and working well with original cylinder heads and mild camshafts. A common choice for original restorations, street-driven engines, and historic motorsport where standard-type components are required or preferred.

Supplied as a set including four pistons, piston pins, and piston rings.

Specifications

• Engines: Volvo B20 (4-cyl) and B30 (6-cyl), model year 1974–

• Bore diameter: 88.90 mm (standard)

• Piston type: Flat-top

• Piston pin diameter: 24 mm

• Contents: 4 pistons, piston pins, and piston rings

Note: B30 engines require a total of six pistons.