Piston kit with rings for Volvo PV444, Duett, B4B, standard

Volvo B4B Standard Piston Set – 75.00 mm

Standard piston set for the Volvo B4B engine with a 75.00 mm standard bore diameter, intended for engines retaining original cylinders or properly reconditioned bores. A dependable choice for original restorations and classic engine builds where reliability and long service life are essential.

The pistons feature a cast construction, providing quiet operation, good heat dissipation, and stable performance for both street-driven classics and vintage vehicles. Commonly used in Scandinavian PV and Duett projects, as well as historic rally and circuit applications.

Supplied as a complete kit including four pistons, piston pins, and piston rings, ready for installation.

Designed to work with original cylinder heads, camshafts, and carburetors, these pistons help preserve the engine’s original response and drivability. They form a solid foundation for a healthy bottom end with even compression and controlled oil ring sealing.

Technical Specifications

• Engine: Volvo B4B

• Bore diameter: 75.00 mm (standard)

• Piston type: Standard, cast

• Kit contents: 4 pistons, piston pins, and piston rings

• Piston pin diameter: 3/4" (19.05 mm) – verify small-end bushing and connecting rod fit

• Recommended piston clearance: 0.04–0.06 mm