Big-Autoparts Sbc Harmonic Balancer Bolt Small Block Damper Compatible With Chevy 280 305 350 383

SB-Chevy, 7/16”-20 x 2-1/4”
SBC Balancer Bolt Harmonic Chevy 280 305 350 383 Small Block Damper
Grade 8 Material
Heat-Treated For Strength
Hex Prevents Socket Slippage
Accurate and Uniform Torque
Black Plated Finish