The Aeroflow harmonic balancer bolt is designed to suit Small Block Chevy engines. Made from a Grade 8 steel they are heat-treated for superior strength. They feature a high hex head to prevent socket slippage while rotating the engine during assembly or routine service inspections. An extra thick, parallel ground washer is provided to allow for a more accurate, uniform torque. Witha durable zinc dichromate, gold tone finish, complete with split lock washer to prevent loosening caused by vibration.
Torque Setting: 60 ft. Lbs.(81Nm)
Thread size: 7/16-20"
Under Head Length: 2.250" (57mm)
Washer Size: .310"(7.8mm) Thick x 1.750" (44mm)
Diameter Spanner Size: 5/8"