1968-72 350" & 455" (Except Toronado)

Disconnect negative battery cable, remove dipstick, and remove upper radiator support and fan shroud attaching screws. Raise car and drain crankcase. On Cutlass and Vista Cruiser, disconnect exhaust pipe from right exhaust manifold. On Delmont, Delta & 98 series, lower relay rod by disconnecting idler arm or pitman arm. On all models, disconnect engine mounts and jack front of engine as far as possible, using a suitable engine support. Remove crossover pipe and starter, remove oil pan attaching bolts, position No. 1 crankshaft throw up and remove oil pan.