i have s4 to be specific its a 88 se the water pump is cavitated. main pulley hub has deep scars. the keyway is messed up. the torrington bearings are shot. the front stationary gear has deep scars. while the engine was runnning you could see black-blue smoke when you started it and at high rpms. fouls out plugs every 3 months, the housings have 210 miles on it. but was supposedly rebuilt. the intake manifold gaskets that were on there were not the proper ones. while it was running it had a large hesitation at 6000.