BBM 7.30in Balancer Int. Balance Non-SFI

The BBM 7.30in Balancer Int. Balance Non-SFI from Pro-Race Performance Products is engineered for serious engine builders and performance enthusiasts who demand precision crankshaft balancing without SFI certification constraints. This internal balance harmonic balancer is purpose-built for high-output street and mild competition engines where factory balancing tolerances fall short of your power goals. Whether you're building a stroker, turbocharged platform, or naturally aspirated mill, this balancer restores critical equilibrium to rotating assemblies that have been modified beyond OEM specifications.

Internal balance design distributes counterweights within the balancer assembly itself, rather than relying on external weight, making this unit ideal for tight engine bays and custom crankshaft combinations. The 7.30-inch diameter provides optimal inertia for mid-range displacement engines, while the internally balanced configuration ensures smooth harmonic damping across the RPM band. Pro-Race's manufacturing standard delivers precise weight distribution that minimizes vibration harmonics—critical when you've lightened pistons, changed rod ratios, or increased displacement. The non-SFI designation means this balancer is street and bracket racing legal without drag strip sanctioning body approval, offering maximum tuning flexibility for dedicated performance builds.

This balancer suits builders working with custom crankshaft packages, stroker conversions, or any platform where factory harmonic balancers cannot accommodate your modified rotating assembly. Installation requires proper crankshaft setup and precise balancing of your specific crank-rod-piston combination—partnering with a dedicated balancing shop ensures optimal results. The 8.35 lb weight and 7.30-inch outer diameter make this a direct consideration for applications where OEM balancers have proven inadequate. Verify your crankshaft's snout diameter and bolt pattern before ordering to ensure seamless fitment.