Pol Alum SBC Double Gro ove Pulley

The Polished Aluminum SBC Double Groove Pulley from Racing Power Co-Packaged is a precision-engineered crankshaft accessory designed for small-block Chevrolet engine builders and performance enthusiasts. This double-groove configuration supports dual serpentine belt systems, making it essential for high-output builds where increased component loading and accessory demand require upgraded pulley geometry.

Constructed from polished aluminum, this pulley offers weight savings compared to factory cast-iron equivalents while maintaining structural integrity under continuous serpentine belt tension. The double-groove design accommodates separate belt paths—typically one for water pump and alternator, the other for power steering and air conditioning—allowing independent tension control and reducing parasitic drag. The polished finish enhances underhood aesthetics and provides superior corrosion resistance, critical for long-term durability in high-heat engine compartments.

SBC enthusiasts installing high-RPM builds, supercharger systems, or upgraded alternators will benefit from the improved pulley geometry and dual-belt capacity this accessory provides. Whether you're building a street performance engine, competition platform, or restoring a classic muscle car, this pulley integrates critical cooling, charging, and accessory drive functionality into one reliable component.