Harmonic Balancer, Under Drive, Internal Balance, Aluminum, Steel, Black, Chevy, 5.7L, SFI 18.1, 6.780" Diameter, 6 Groove, 10% Under Driven, Without A/C, 4.5#, Y-Body, Corvette Spacing, 3 Bolt Front

Harmonic Balancer, Under Drive, Internal Balance, Aluminum, Steel, Black, Chevy, 5.7L, SFI 18.1, 6.780" Diameter, 6 Groove, 10% Under Driven, Without A/C, 4.5#, Y-Body, Corvette Spacing, 3 Bolt Front

*Requires Shorter Serpentine Belt. Goodyear #4060785 For Accessories and #4040405 For AC
*Contains 40 Durometer Rubber, NOT For Full Race Engines. Specify 66 Rubber Or Call
*Damper Assemblies Have All Countersunk Bolts So Nothing Protrudes Past Front Of Damper. If You Have An Older Damper And Are Ordering A New Shell Assembly Only, You Must Cut A .090" x 45° Chamfer On The Fornt Of Your Hub. ATI Machining Cost $40 And Has To Be Sent In.