Firebird V6-191 3.1L (1990)
Crankshaft: Description and Operation
The crankshaft is cast nodular iron with deep rolled fillets on all six crankpins and two center main journals.
Pontiac Workshop Service and Repair Manuals
Torsional Damper <--> [Harmonic Balancer - Crankshaft Pulley] >
< Torque Specifications|Page 1467
Page 1
