[wesch]

Hello,
Can you tell me where the 2 coolant drain plugs are on the block of the 351C, 1973 Mustang?
I understand there are 2, one on each side, but where are they..? underneath?

thank you

[legryz]

Yes there are two drain plugs, there on the side of the block, driver side is toward the back of the block and the passenger side is toward the front. They are probably square headed plugs but someone could have put drain cocks in. The best way to see them will be from under the car but if you have room you may be able to see them from the top. Good luck