Part #: 917211. Manufacturer: ATI.
ATI 917211 7.074 Harmonic Damper SFI Use w/dry sump. For GM LS1
ATI 917200 Super Damper
ATI 918452 Super Damper Harmonic Balancer 18% Overdrive 8 Rib Hemi 5.7 & 6.4
ATI 917781 Super Damper
ATI 917060 Super Damper Harmonic Balancer for Big Block Chevy 396/402/427
ATI 917511 Super Damper