Eastwood Contour SCT Sanding Drum - 4.5 in OD - Nylon Bristle Brush OB0-2979 Most standard harmonic balancers are 2 1 2 to M77MS829H30 1303LS1-3 Size:Youth 2X-Large

Most standard harmonic balancers are assembled with inserted dampening rubber which won't handle the torque forces and higher revs the modern engines generate

Slightly rough idle

375" bolt spacing) x 6

2L/2010-14 CAMARO LS3/L99 6

Dimensions: 3-1/2" Inlet / 3-1/2" Outlet / 14" Length / 4-1/2" Diameter

Eastwood Contour SCT Sanding Drum 4.5 in OD Nylon Bristle Brush OB0 2979 Most standard harmonic balancers are 2 1 2 to M77MS829H30 1303LS1 3 Size:Youth 2X Large Most standard harmonic balancers are assembled with inserted dampening rubber which won't handle the torque forces and higher revs the modern engines generate Slightly rough idle