Are 2004 grand am gt 3.4 liter head gaskets known do blowor just earlier years?
Any head gasket can blow......but to be honest the 2.8, 3.1 and
3.4 aren't really known for blown head gaskets. Sure it happens,
but the biggest problem with some of the late 90s early 2000s was a
weak lower intake manifold gasket. Not the head gaskets.