273 Commando - Coolant leak - Cometic MLS Head Gasket
Moper got it rite on the head! My 273 did the same thing shortly after getting it running. The key is very smooth finish! Its wild mine dribbled from the same area ever so slightly. Never made it to ground just noticed paint discoloration when I change oil after break in. BTW what pistons do you have in there? They look sweet!?