64266 Pro Race All Steel SFI Race Harmonic Balancer, SB Chevy 400

Pro Race All Steel SFI harmonic balancers are designed and manufactured for racing and high performance street applications and are available for a wide range of engines. The PRO/RACE Balancer is a direct replacement for the cast iron stock Balancer which is no longer permitted by most racing sanctioning bodies due to the danger of fracture and high speed disintegration or separation of the inertia ring from the hub. This problem is eliminated with a PRO/RACE Balancer. The PRO/RACE "ALL STEEL" Harmonic Balancer is also a must for all belt driven supercharger applications due to the additional torque loads on the Balancer hub and keyway which results in failure in nearly 100% of all blower installations with a stock Balancer.

Exceeds SFI Spec. 18.1 - Spin tested to 18,000RPM
Specially formulated bonded elastomer
100% CNC machined
Billet steel inertial ring and hub
Splined inertia ring and hub
60 degree of engraved timing marks (40 degree on SB Ford models)
Easily installed - Instructions included
Bonding on "Race" models only.