LS 58x Crankshafts

Chevrolet Performance Harmonic Balancer Bolt 11570163  For GM LS7 Dry Sump  

Chevrolet Performance Harmonic Balancer Bolt 12557840  For GM Gen III/IV 4.8L, 5.3L, 5.7L, 6.0L, 6.2L.  Will not fit LS7/LS9 w/ dry sump.