Just wondering if someone could tell me what the threaded hole on the passenged side of my 350 sbc is/was for. It's located near the center and pretty much directly behind the collector of my block hubber header. Does that hole go all the way though? Thanks!
08-22-2012 07:16 PM
Centered, just above the oil pan is a drain hole. Yes it goes thru into coolant. Takes a pipe plug or knock sensor.