Ati 917010, One Black Steel Shell Assy 7.074 Steel Sbc 3-Ring Int. Balance Perfo
Harmonic Balancer Shell, 7.074 in OD, SFI 18.1, Steel, Black Paint, ATI Super Damper, Internal Balance, Small Block Chevy, Each. Internal/External Balance Internal. Balance Weight 11.5 lbs. Material Steel.