72 351C 4 bolt main cylinder block.
Pressure tested
sonic tested
align bore checked
.030
800.00 plus shipping
Is it running and will it fit 73 Mercury Cougar Convertible
As that was a 4 year old post it’s most likely sold. I also think it was just a cylinder block needing to be built up in to a complete assembly. With that said, yes it would fit your 73 Cougar. Good luck finding your new engine.