The head has to be removed on the 1993 Roadmaster to get to the gasket. You will need to remove the intake, exhaust manifold, and valve cover then unbolt the head to remove it. Check the head for warpage while it is removed.
Which solenoid? BOB
Remove the grill
Oxygen SensorOxygen Sensor Location
Not without serious modification, but anything is possible if you have enough money for a conversion.
Replace ignition switch for 1993 buick century?
Remove retaining nut
Bottom of engine, inside the oil pan.
Remove the fuel tank to gain access to it.
flush the heater core in both directions with water
Remove the crossmember and drop it out the bottom no problem.