LS1

The C5 Corvette LS1 Engine ships from the factory with a 4 port steam port crossover that runs under the intake manifold. This steamport crossover helps ensure that steam cannot get trapped in any of the pockets of the head resulting in a hot spot which can lead to head gasket failure and/or other catastrophic engine failure. Thus, the steam port crossover on heads has a use, and an important one at that. That said, Many folks will note that