Hello there, recently bought a 2007 Z06 with 30k on it. New block, sleeves, forged pistons, ported polished heads, boost cam and a P1 Procharger. Drove the car 800 miles home with no issues. Got home drove it around a couple weeks and the low coolant light came on. Come to find out there was coolant in the oil. Went ahead and replaced head gaskets and today drained the oil for the second time in 100 miles aince the head gasket replacement and found coolant in the oil stil (maybe about a quart worth of coolant). Heads were machined and inspected, block seemed fine, sleeves looked good, no evident signs of cracks. Not sure if it was old coolantnin there or new one. Reservoir did drop in level of coolant about 2 inches (which I thought was fine, i figured there was pockets of air and it was working its way out) not sure what else to do!