Oil Pan Drain Plug Size/Thread Pitch, 1994 Chevy 454

Discussion in 'GM Powertrain' started by The Heater, Mar 19, 2013.

  1. The Heater

    The Heater Member 2 Years 100 Posts

    Hello,all:

    Does anyone know the size and thread pitch for a drain plug for a 1994 Chevy truck 454?

    The best guess I have is it might be a 1/2" NPT 20, but I can't confirm that. (I need to know for getting a special fitting to screw into the oil drain hole.)

    Thanks,

    Mike
     

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