SBC 6.61in Balancer Int. Balance - SFI

Pro Sport Harmonic Balancers provide race quality performance at near replacement part prices and are available for most popular V8 engines. The Pro Sport SFI Harmonic Balancer is produced from quality carbon steel with mechanical properties exceeding the stringent SFI Spec. #18.1 requirements! Spin tested to 12,500 rpm for one hour to comply with SFI Spec. #18.1, so when your racing needs require SFI certification, the PRO/SPORT Harmonic Balancer is ready for the track. Machined to exacting tolerances and assembled using pressure bonded elastomer technology of tried and proven design for optimum damping performance! The outer inertia ring is retained by a robust retention plate secured by 6 high tensile bolts to ensure maximum safety of the product. Extremely accurate and easy to read permanently engraved timing marks make engine timing easy, and 90 degree marks simplify valve timing operations (except SB Ford models). Has 60° of permanently engraved timing marks.