I had a 350 push out .060 put it all together fired it up to break in the cam. after about 15 min I noticed green liquid on the floor. I paid to have the block magnafluxed. I tore it down thinking I did somthing wrong. with the heads off I could see antifreze coming through the cylinder walls in two cylinders. I brought it back to the shop and they swore they checked it......They finely sleeved the two cylinders and everything was good. I was out the gaskets and time ...